Home / 890,001.75-1,228,208.36-482,103.62

Finding the Fourth Proportional to 890,001.75, 1,228,208.36 and 482,103.62

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Solution

The fourth proportional to 890,001.75, 1,228,208.36 and 482,103.62 is: 665,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,001.75 : 1,228,208.36 = 482,103.62 : x
  2. Step 2: Convert to fraction form
    890,001.75/1,228,208.36 = 482,103.62/x
  3. Step 3: Cross multiply
    890,001.75x = 1,228,208.36 × 482,103.62
  4. Step 4: Simplify right side
    890,001.75x = 592,123,696,470.26
  5. Step 5: Solve for x
    x = 592,123,696,470.26/890,001.75
  6. Step 6: Final answer
    x = 665,306.22

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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.