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Finding the Fourth Proportional to 702,077.62, 1,053,707.22 and 657,790.87

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Solution

The fourth proportional to 702,077.62, 1,053,707.22 and 657,790.87 is: 987,239.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,077.62 : 1,053,707.22 = 657,790.87 : x
  2. Step 2: Convert to fraction form
    702,077.62/1,053,707.22 = 657,790.87/x
  3. Step 3: Cross multiply
    702,077.62x = 1,053,707.22 × 657,790.87
  4. Step 4: Simplify right side
    702,077.62x = 693,118,980,411.59
  5. Step 5: Solve for x
    x = 693,118,980,411.59/702,077.62
  6. Step 6: Final answer
    x = 987,239.82

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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.