Home / 985,501.20-1,478,251.80-891,022.80

Finding the Fourth Proportional to 985,501.20, 1,478,251.80 and 891,022.80

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Solution

The fourth proportional to 985,501.20, 1,478,251.80 and 891,022.80 is: 1,336,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,501.20 : 1,478,251.80 = 891,022.80 : x
  2. Step 2: Convert to fraction form
    985,501.20/1,478,251.80 = 891,022.80/x
  3. Step 3: Cross multiply
    985,501.20x = 1,478,251.80 × 891,022.80
  4. Step 4: Simplify right side
    985,501.20x = 1,317,156,057,941.04
  5. Step 5: Solve for x
    x = 1,317,156,057,941.04/985,501.20
  6. Step 6: Final answer
    x = 1,336,534.20

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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.