Home / 749,609.14-1,123,630.35-328,530.10

Finding the Fourth Proportional to 749,609.14, 1,123,630.35 and 328,530.10

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Solution

The fourth proportional to 749,609.14, 1,123,630.35 and 328,530.10 is: 492,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,609.14 : 1,123,630.35 = 328,530.10 : x
  2. Step 2: Convert to fraction form
    749,609.14/1,123,630.35 = 328,530.10/x
  3. Step 3: Cross multiply
    749,609.14x = 1,123,630.35 × 328,530.10
  4. Step 4: Simplify right side
    749,609.14x = 369,146,391,248.54
  5. Step 5: Solve for x
    x = 369,146,391,248.54/749,609.14
  6. Step 6: Final answer
    x = 492,451.83

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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.