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Finding the Fourth Proportional to 885,951.30, 1,330,239.15 and 686,496.90

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Solution

The fourth proportional to 885,951.30, 1,330,239.15 and 686,496.90 is: 1,030,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,951.30 : 1,330,239.15 = 686,496.90 : x
  2. Step 2: Convert to fraction form
    885,951.30/1,330,239.15 = 686,496.90/x
  3. Step 3: Cross multiply
    885,951.30x = 1,330,239.15 × 686,496.90
  4. Step 4: Simplify right side
    885,951.30x = 913,205,052,733.64
  5. Step 5: Solve for x
    x = 913,205,052,733.64/885,951.30
  6. Step 6: Final answer
    x = 1,030,762.13

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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.