Home / 988,278.10-1,482,417.15-278,329.30

Finding the Fourth Proportional to 988,278.10, 1,482,417.15 and 278,329.30

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Solution

The fourth proportional to 988,278.10, 1,482,417.15 and 278,329.30 is: 417,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,278.10 : 1,482,417.15 = 278,329.30 : x
  2. Step 2: Convert to fraction form
    988,278.10/1,482,417.15 = 278,329.30/x
  3. Step 3: Cross multiply
    988,278.10x = 1,482,417.15 × 278,329.30
  4. Step 4: Simplify right side
    988,278.10x = 412,600,127,667.50
  5. Step 5: Solve for x
    x = 412,600,127,667.50/988,278.10
  6. Step 6: Final answer
    x = 417,493.95

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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.