Home / 485,045.10-727,567.65-415,061.10

Finding the Fourth Proportional to 485,045.10, 727,567.65 and 415,061.10

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Solution

The fourth proportional to 485,045.10, 727,567.65 and 415,061.10 is: 622,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,045.10 : 727,567.65 = 415,061.10 : x
  2. Step 2: Convert to fraction form
    485,045.10/727,567.65 = 415,061.10/x
  3. Step 3: Cross multiply
    485,045.10x = 727,567.65 × 415,061.10
  4. Step 4: Simplify right side
    485,045.10x = 301,985,029,133.42
  5. Step 5: Solve for x
    x = 301,985,029,133.42/485,045.10
  6. Step 6: Final answer
    x = 622,591.65

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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.