Home / 861,329.39-1,292,188.71-284,951.31

Finding the Fourth Proportional to 861,329.39, 1,292,188.71 and 284,951.31

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Solution

The fourth proportional to 861,329.39, 1,292,188.71 and 284,951.31 is: 427,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,329.39 : 1,292,188.71 = 284,951.31 : x
  2. Step 2: Convert to fraction form
    861,329.39/1,292,188.71 = 284,951.31/x
  3. Step 3: Cross multiply
    861,329.39x = 1,292,188.71 × 284,951.31
  4. Step 4: Simplify right side
    861,329.39x = 368,210,865,681.71
  5. Step 5: Solve for x
    x = 368,210,865,681.71/861,329.39
  6. Step 6: Final answer
    x = 427,491.35

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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.