Home / 990,805.46-1,367,319.57-538,099.70

Finding the Fourth Proportional to 990,805.46, 1,367,319.57 and 538,099.70

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Solution

The fourth proportional to 990,805.46, 1,367,319.57 and 538,099.70 is: 742,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,805.46 : 1,367,319.57 = 538,099.70 : x
  2. Step 2: Convert to fraction form
    990,805.46/1,367,319.57 = 538,099.70/x
  3. Step 3: Cross multiply
    990,805.46x = 1,367,319.57 × 538,099.70
  4. Step 4: Simplify right side
    990,805.46x = 735,754,250,421.13
  5. Step 5: Solve for x
    x = 735,754,250,421.13/990,805.46
  6. Step 6: Final answer
    x = 742,581.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.