Home / 820,247.32-1,132,149.10-489,459.32

Finding the Fourth Proportional to 820,247.32, 1,132,149.10 and 489,459.32

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Solution

The fourth proportional to 820,247.32, 1,132,149.10 and 489,459.32 is: 675,577.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,247.32 : 1,132,149.10 = 489,459.32 : x
  2. Step 2: Convert to fraction form
    820,247.32/1,132,149.10 = 489,459.32/x
  3. Step 3: Cross multiply
    820,247.32x = 1,132,149.10 × 489,459.32
  4. Step 4: Simplify right side
    820,247.32x = 554,140,928,624.61
  5. Step 5: Solve for x
    x = 554,140,928,624.61/820,247.32
  6. Step 6: Final answer
    x = 675,577.86

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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.