Home / 672,938.55-928,629.51-371,132.55

Finding the Fourth Proportional to 672,938.55, 928,629.51 and 371,132.55

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Solution

The fourth proportional to 672,938.55, 928,629.51 and 371,132.55 is: 512,148.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,938.55 : 928,629.51 = 371,132.55 : x
  2. Step 2: Convert to fraction form
    672,938.55/928,629.51 = 371,132.55/x
  3. Step 3: Cross multiply
    672,938.55x = 928,629.51 × 371,132.55
  4. Step 4: Simplify right side
    672,938.55x = 344,644,638,051.55
  5. Step 5: Solve for x
    x = 344,644,638,051.55/672,938.55
  6. Step 6: Final answer
    x = 512,148.75

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Double scale
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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.