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Finding the Fourth Proportional to 703,807.91, 1,054,007.03 and 487,059.28

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Solution

The fourth proportional to 703,807.91, 1,054,007.03 and 487,059.28 is: 729,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,807.91 : 1,054,007.03 = 487,059.28 : x
  2. Step 2: Convert to fraction form
    703,807.91/1,054,007.03 = 487,059.28/x
  3. Step 3: Cross multiply
    703,807.91x = 1,054,007.03 × 487,059.28
  4. Step 4: Simplify right side
    703,807.91x = 513,363,905,146.74
  5. Step 5: Solve for x
    x = 513,363,905,146.74/703,807.91
  6. Step 6: Final answer
    x = 729,409.12

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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.