Home / 690,812.60-1,034,145.30-410,185.40

Finding the Fourth Proportional to 690,812.60, 1,034,145.30 and 410,185.40

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Solution

The fourth proportional to 690,812.60, 1,034,145.30 and 410,185.40 is: 614,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,812.60 : 1,034,145.30 = 410,185.40 : x
  2. Step 2: Convert to fraction form
    690,812.60/1,034,145.30 = 410,185.40/x
  3. Step 3: Cross multiply
    690,812.60x = 1,034,145.30 × 410,185.40
  4. Step 4: Simplify right side
    690,812.60x = 424,191,303,538.62
  5. Step 5: Solve for x
    x = 424,191,303,538.62/690,812.60
  6. Step 6: Final answer
    x = 614,046.85

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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.