Home / 1,039,387.30-1,559,080.95-408,091.30

Finding the Fourth Proportional to 1,039,387.30, 1,559,080.95 and 408,091.30

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Solution

The fourth proportional to 1,039,387.30, 1,559,080.95 and 408,091.30 is: 612,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,387.30 : 1,559,080.95 = 408,091.30 : x
  2. Step 2: Convert to fraction form
    1,039,387.30/1,559,080.95 = 408,091.30/x
  3. Step 3: Cross multiply
    1,039,387.30x = 1,559,080.95 × 408,091.30
  4. Step 4: Simplify right side
    1,039,387.30x = 636,247,371,690.74
  5. Step 5: Solve for x
    x = 636,247,371,690.74/1,039,387.30
  6. Step 6: Final answer
    x = 612,136.95

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Double scale
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Similar ratio
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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.