Home / 889,665.80-1,334,498.70-392,001.80

Finding the Fourth Proportional to 889,665.80, 1,334,498.70 and 392,001.80

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Solution

The fourth proportional to 889,665.80, 1,334,498.70 and 392,001.80 is: 588,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,665.80 : 1,334,498.70 = 392,001.80 : x
  2. Step 2: Convert to fraction form
    889,665.80/1,334,498.70 = 392,001.80/x
  3. Step 3: Cross multiply
    889,665.80x = 1,334,498.70 × 392,001.80
  4. Step 4: Simplify right side
    889,665.80x = 523,125,892,497.66
  5. Step 5: Solve for x
    x = 523,125,892,497.66/889,665.80
  6. Step 6: Final answer
    x = 588,002.70

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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.