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Finding the Fourth Proportional to 662,813.16, 915,221.88 and 540,324.96

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Solution

The fourth proportional to 662,813.16, 915,221.88 and 540,324.96 is: 746,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,813.16 : 915,221.88 = 540,324.96 : x
  2. Step 2: Convert to fraction form
    662,813.16/915,221.88 = 540,324.96/x
  3. Step 3: Cross multiply
    662,813.16x = 915,221.88 × 540,324.96
  4. Step 4: Simplify right side
    662,813.16x = 494,517,225,702.13
  5. Step 5: Solve for x
    x = 494,517,225,702.13/662,813.16
  6. Step 6: Final answer
    x = 746,088.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.