Home / 804,724.20-1,208,007.90-472,487.40

Finding the Fourth Proportional to 804,724.20, 1,208,007.90 and 472,487.40

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Solution

The fourth proportional to 804,724.20, 1,208,007.90 and 472,487.40 is: 709,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,724.20 : 1,208,007.90 = 472,487.40 : x
  2. Step 2: Convert to fraction form
    804,724.20/1,208,007.90 = 472,487.40/x
  3. Step 3: Cross multiply
    804,724.20x = 1,208,007.90 × 472,487.40
  4. Step 4: Simplify right side
    804,724.20x = 570,768,511,850.46
  5. Step 5: Solve for x
    x = 570,768,511,850.46/804,724.20
  6. Step 6: Final answer
    x = 709,272.21

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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.