Home / 648,004.10-972,006.15-487,040.90

Finding the Fourth Proportional to 648,004.10, 972,006.15 and 487,040.90

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Solution

The fourth proportional to 648,004.10, 972,006.15 and 487,040.90 is: 730,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,004.10 : 972,006.15 = 487,040.90 : x
  2. Step 2: Convert to fraction form
    648,004.10/972,006.15 = 487,040.90/x
  3. Step 3: Cross multiply
    648,004.10x = 972,006.15 × 487,040.90
  4. Step 4: Simplify right side
    648,004.10x = 473,406,750,101.54
  5. Step 5: Solve for x
    x = 473,406,750,101.54/648,004.10
  6. Step 6: Final answer
    x = 730,561.35

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Similar ratio
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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.