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Finding the Fourth Proportional to 802,073.70, 1,203,110.55 and 748,929.60

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Solution

The fourth proportional to 802,073.70, 1,203,110.55 and 748,929.60 is: 1,123,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,073.70 : 1,203,110.55 = 748,929.60 : x
  2. Step 2: Convert to fraction form
    802,073.70/1,203,110.55 = 748,929.60/x
  3. Step 3: Cross multiply
    802,073.70x = 1,203,110.55 × 748,929.60
  4. Step 4: Simplify right side
    802,073.70x = 901,045,102,967.28
  5. Step 5: Solve for x
    x = 901,045,102,967.28/802,073.70
  6. Step 6: Final answer
    x = 1,123,394.40

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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.