Home / 861,455.52-1,187,533.80-551,323.92

Finding the Fourth Proportional to 861,455.52, 1,187,533.80 and 551,323.92

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Solution

The fourth proportional to 861,455.52, 1,187,533.80 and 551,323.92 is: 760,011.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,455.52 : 1,187,533.80 = 551,323.92 : x
  2. Step 2: Convert to fraction form
    861,455.52/1,187,533.80 = 551,323.92/x
  3. Step 3: Cross multiply
    861,455.52x = 1,187,533.80 × 551,323.92
  4. Step 4: Simplify right side
    861,455.52x = 654,715,789,748.50
  5. Step 5: Solve for x
    x = 654,715,789,748.50/861,455.52
  6. Step 6: Final answer
    x = 760,011.14

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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.