Home / 990,811.46-1,367,327.85-538,105.70

Finding the Fourth Proportional to 990,811.46, 1,367,327.85 and 538,105.70

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Solution

The fourth proportional to 990,811.46, 1,367,327.85 and 538,105.70 is: 742,590.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,811.46 : 1,367,327.85 = 538,105.70 : x
  2. Step 2: Convert to fraction form
    990,811.46/1,367,327.85 = 538,105.70/x
  3. Step 3: Cross multiply
    990,811.46x = 1,367,327.85 × 538,105.70
  4. Step 4: Simplify right side
    990,811.46x = 735,766,909,853.75
  5. Step 5: Solve for x
    x = 735,766,909,853.75/990,811.46
  6. Step 6: Final answer
    x = 742,590.23

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1.5x scale

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.