Home / 917,487.10-1,266,132.18-515,079.10

Finding the Fourth Proportional to 917,487.10, 1,266,132.18 and 515,079.10

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Solution

The fourth proportional to 917,487.10, 1,266,132.18 and 515,079.10 is: 710,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,487.10 : 1,266,132.18 = 515,079.10 : x
  2. Step 2: Convert to fraction form
    917,487.10/1,266,132.18 = 515,079.10/x
  3. Step 3: Cross multiply
    917,487.10x = 1,266,132.18 × 515,079.10
  4. Step 4: Simplify right side
    917,487.10x = 652,158,223,755.44
  5. Step 5: Solve for x
    x = 652,158,223,755.44/917,487.10
  6. Step 6: Final answer
    x = 710,809.15

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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.