Home / 690,781.35-1,036,172.03-410,154.15

Finding the Fourth Proportional to 690,781.35, 1,036,172.03 and 410,154.15

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Solution

The fourth proportional to 690,781.35, 1,036,172.03 and 410,154.15 is: 615,231.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,781.35 : 1,036,172.03 = 410,154.15 : x
  2. Step 2: Convert to fraction form
    690,781.35/1,036,172.03 = 410,154.15/x
  3. Step 3: Cross multiply
    690,781.35x = 1,036,172.03 × 410,154.15
  4. Step 4: Simplify right side
    690,781.35x = 424,990,258,218.43
  5. Step 5: Solve for x
    x = 424,990,258,218.43/690,781.35
  6. Step 6: Final answer
    x = 615,231.23

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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.