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Finding the Fourth Proportional to 619,312.38, 929,134.65 and 493,427.30

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Solution

The fourth proportional to 619,312.38, 929,134.65 and 493,427.30 is: 740,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,312.38 : 929,134.65 = 493,427.30 : x
  2. Step 2: Convert to fraction form
    619,312.38/929,134.65 = 493,427.30/x
  3. Step 3: Cross multiply
    619,312.38x = 929,134.65 × 493,427.30
  4. Step 4: Simplify right side
    619,312.38x = 458,460,396,115.10
  5. Step 5: Solve for x
    x = 458,460,396,115.10/619,312.38
  6. Step 6: Final answer
    x = 740,273.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.