Home / 672,939.55-928,426.89-382,521.75

Finding the Fourth Proportional to 672,939.55, 928,426.89 and 382,521.75

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Solution

The fourth proportional to 672,939.55, 928,426.89 and 382,521.75 is: 527,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,939.55 : 928,426.89 = 382,521.75 : x
  2. Step 2: Convert to fraction form
    672,939.55/928,426.89 = 382,521.75/x
  3. Step 3: Cross multiply
    672,939.55x = 928,426.89 × 382,521.75
  4. Step 4: Simplify right side
    672,939.55x = 355,143,478,709.86
  5. Step 5: Solve for x
    x = 355,143,478,709.86/672,939.55
  6. Step 6: Final answer
    x = 527,749.45

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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.