Home / 890,703.60-1,229,147.64-482,787.60

Finding the Fourth Proportional to 890,703.60, 1,229,147.64 and 482,787.60

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Solution

The fourth proportional to 890,703.60, 1,229,147.64 and 482,787.60 is: 666,234.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,703.60 : 1,229,147.64 = 482,787.60 : x
  2. Step 2: Convert to fraction form
    890,703.60/1,229,147.64 = 482,787.60/x
  3. Step 3: Cross multiply
    890,703.60x = 1,229,147.64 × 482,787.60
  4. Step 4: Simplify right side
    890,703.60x = 593,417,239,161.26
  5. Step 5: Solve for x
    x = 593,417,239,161.26/890,703.60
  6. Step 6: Final answer
    x = 666,234.24

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.