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Finding the Fourth Proportional to 891,702.14, 1,230,549.03 and 509,737.12

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Solution

The fourth proportional to 891,702.14, 1,230,549.03 and 509,737.12 is: 703,437.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,702.14 : 1,230,549.03 = 509,737.12 : x
  2. Step 2: Convert to fraction form
    891,702.14/1,230,549.03 = 509,737.12/x
  3. Step 3: Cross multiply
    891,702.14x = 1,230,549.03 × 509,737.12
  4. Step 4: Simplify right side
    891,702.14x = 627,256,515,494.62
  5. Step 5: Solve for x
    x = 627,256,515,494.62/891,702.14
  6. Step 6: Final answer
    x = 703,437.27

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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.