Home / 1,039,613.40-1,560,294.90-408,979.80

Finding the Fourth Proportional to 1,039,613.40, 1,560,294.90 and 408,979.80

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Solution

The fourth proportional to 1,039,613.40, 1,560,294.90 and 408,979.80 is: 613,813.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,613.40 : 1,560,294.90 = 408,979.80 : x
  2. Step 2: Convert to fraction form
    1,039,613.40/1,560,294.90 = 408,979.80/x
  3. Step 3: Cross multiply
    1,039,613.40x = 1,560,294.90 × 408,979.80
  4. Step 4: Simplify right side
    1,039,613.40x = 638,129,096,143.02
  5. Step 5: Solve for x
    x = 638,129,096,143.02/1,039,613.40
  6. Step 6: Final answer
    x = 613,813.84

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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.