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Finding the Fourth Proportional to 502,217.28, 693,064.74 and 275,862.80

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Solution

The fourth proportional to 502,217.28, 693,064.74 and 275,862.80 is: 380,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,217.28 : 693,064.74 = 275,862.80 : x
  2. Step 2: Convert to fraction form
    502,217.28/693,064.74 = 275,862.80/x
  3. Step 3: Cross multiply
    502,217.28x = 693,064.74 × 275,862.80
  4. Step 4: Simplify right side
    502,217.28x = 191,190,779,757.67
  5. Step 5: Solve for x
    x = 191,190,779,757.67/502,217.28
  6. Step 6: Final answer
    x = 380,693.35

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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.