Home / 747,637.40-1,121,456.10-546,870.80

Finding the Fourth Proportional to 747,637.40, 1,121,456.10 and 546,870.80

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Solution

The fourth proportional to 747,637.40, 1,121,456.10 and 546,870.80 is: 820,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,637.40 : 1,121,456.10 = 546,870.80 : x
  2. Step 2: Convert to fraction form
    747,637.40/1,121,456.10 = 546,870.80/x
  3. Step 3: Cross multiply
    747,637.40x = 1,121,456.10 × 546,870.80
  4. Step 4: Simplify right side
    747,637.40x = 613,291,594,571.88
  5. Step 5: Solve for x
    x = 613,291,594,571.88/747,637.40
  6. Step 6: Final answer
    x = 820,306.20

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