Home / 871,302.08-1,304,140.80-449,998.40

Finding the Fourth Proportional to 871,302.08, 1,304,140.80 and 449,998.40

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Solution

The fourth proportional to 871,302.08, 1,304,140.80 and 449,998.40 is: 673,545.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,302.08 : 1,304,140.80 = 449,998.40 : x
  2. Step 2: Convert to fraction form
    871,302.08/1,304,140.80 = 449,998.40/x
  3. Step 3: Cross multiply
    871,302.08x = 1,304,140.80 × 449,998.40
  4. Step 4: Simplify right side
    871,302.08x = 586,861,273,374.72
  5. Step 5: Solve for x
    x = 586,861,273,374.72/871,302.08
  6. Step 6: Final answer
    x = 673,545.13

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Double scale
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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.