Home / 988,501.60-1,482,752.40-278,520.40

Finding the Fourth Proportional to 988,501.60, 1,482,752.40 and 278,520.40

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Solution

The fourth proportional to 988,501.60, 1,482,752.40 and 278,520.40 is: 417,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,501.60 : 1,482,752.40 = 278,520.40 : x
  2. Step 2: Convert to fraction form
    988,501.60/1,482,752.40 = 278,520.40/x
  3. Step 3: Cross multiply
    988,501.60x = 1,482,752.40 × 278,520.40
  4. Step 4: Simplify right side
    988,501.60x = 412,976,791,548.96
  5. Step 5: Solve for x
    x = 412,976,791,548.96/988,501.60
  6. Step 6: Final answer
    x = 417,780.60

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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.