Home / 889,793.30-1,227,914.85-487,385.30

Finding the Fourth Proportional to 889,793.30, 1,227,914.85 and 487,385.30

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Solution

The fourth proportional to 889,793.30, 1,227,914.85 and 487,385.30 is: 672,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,793.30 : 1,227,914.85 = 487,385.30 : x
  2. Step 2: Convert to fraction form
    889,793.30/1,227,914.85 = 487,385.30/x
  3. Step 3: Cross multiply
    889,793.30x = 1,227,914.85 × 487,385.30
  4. Step 4: Simplify right side
    889,793.30x = 598,467,647,541.71
  5. Step 5: Solve for x
    x = 598,467,647,541.71/889,793.30
  6. Step 6: Final answer
    x = 672,591.77

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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.