Home / 811,537.47-1,120,005.90-467,385.66

Finding the Fourth Proportional to 811,537.47, 1,120,005.90 and 467,385.66

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Solution

The fourth proportional to 811,537.47, 1,120,005.90 and 467,385.66 is: 645,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,537.47 : 1,120,005.90 = 467,385.66 : x
  2. Step 2: Convert to fraction form
    811,537.47/1,120,005.90 = 467,385.66/x
  3. Step 3: Cross multiply
    811,537.47x = 1,120,005.90 × 467,385.66
  4. Step 4: Simplify right side
    811,537.47x = 523,474,696,775.39
  5. Step 5: Solve for x
    x = 523,474,696,775.39/811,537.47
  6. Step 6: Final answer
    x = 645,040.70

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Double scale
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1.5x scale

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.