Home / 791,791.61-1,187,436.59-286,285.69

Finding the Fourth Proportional to 791,791.61, 1,187,436.59 and 286,285.69

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Solution

The fourth proportional to 791,791.61, 1,187,436.59 and 286,285.69 is: 429,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,791.61 : 1,187,436.59 = 286,285.69 : x
  2. Step 2: Convert to fraction form
    791,791.61/1,187,436.59 = 286,285.69/x
  3. Step 3: Cross multiply
    791,791.61x = 1,187,436.59 × 286,285.69
  4. Step 4: Simplify right side
    791,791.61x = 339,946,103,820.66
  5. Step 5: Solve for x
    x = 339,946,103,820.66/791,791.61
  6. Step 6: Final answer
    x = 429,337.85

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Double scale
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Similar ratio
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1.5x scale

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.