Home / 1,168,972.60-1,754,150.10-420,921.40

Finding the Fourth Proportional to 1,168,972.60, 1,754,150.10 and 420,921.40

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Solution

The fourth proportional to 1,168,972.60, 1,754,150.10 and 420,921.40 is: 631,630.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,972.60 : 1,754,150.10 = 420,921.40 : x
  2. Step 2: Convert to fraction form
    1,168,972.60/1,754,150.10 = 420,921.40/x
  3. Step 3: Cross multiply
    1,168,972.60x = 1,754,150.10 × 420,921.40
  4. Step 4: Simplify right side
    1,168,972.60x = 738,359,315,902.14
  5. Step 5: Solve for x
    x = 738,359,315,902.14/1,168,972.60
  6. Step 6: Final answer
    x = 631,630.99

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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.