Home / 919,373.60-1,376,500.80-469,121.60

Finding the Fourth Proportional to 919,373.60, 1,376,500.80 and 469,121.60

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Solution

The fourth proportional to 919,373.60, 1,376,500.80 and 469,121.60 is: 702,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,373.60 : 1,376,500.80 = 469,121.60 : x
  2. Step 2: Convert to fraction form
    919,373.60/1,376,500.80 = 469,121.60/x
  3. Step 3: Cross multiply
    919,373.60x = 1,376,500.80 × 469,121.60
  4. Step 4: Simplify right side
    919,373.60x = 645,746,257,697.28
  5. Step 5: Solve for x
    x = 645,746,257,697.28/919,373.60
  6. Step 6: Final answer
    x = 702,376.33

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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.