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Finding the Fourth Proportional to 672,554.72, 928,190.76 and 502,493.60

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Solution

The fourth proportional to 672,554.72, 928,190.76 and 502,493.60 is: 693,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,554.72 : 928,190.76 = 502,493.60 : x
  2. Step 2: Convert to fraction form
    672,554.72/928,190.76 = 502,493.60/x
  3. Step 3: Cross multiply
    672,554.72x = 928,190.76 × 502,493.60
  4. Step 4: Simplify right side
    672,554.72x = 466,409,916,479.14
  5. Step 5: Solve for x
    x = 466,409,916,479.14/672,554.72
  6. Step 6: Final answer
    x = 693,489.92

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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.