Home / 672,938.55-928,425.51-382,520.75

Finding the Fourth Proportional to 672,938.55, 928,425.51 and 382,520.75

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Solution

The fourth proportional to 672,938.55, 928,425.51 and 382,520.75 is: 527,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,938.55 : 928,425.51 = 382,520.75 : x
  2. Step 2: Convert to fraction form
    672,938.55/928,425.51 = 382,520.75/x
  3. Step 3: Cross multiply
    672,938.55x = 928,425.51 × 382,520.75
  4. Step 4: Simplify right side
    672,938.55x = 355,142,017,762.21
  5. Step 5: Solve for x
    x = 355,142,017,762.21/672,938.55
  6. Step 6: Final answer
    x = 527,748.07

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Half scale
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Double scale
Find fourth proportional to 672,939.55, 928,426.89 and 382,521.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.