Home / 1,137,635.04-1,705,398.24-428,133.60

Finding the Fourth Proportional to 1,137,635.04, 1,705,398.24 and 428,133.60

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Solution

The fourth proportional to 1,137,635.04, 1,705,398.24 and 428,133.60 is: 641,803.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,635.04 : 1,705,398.24 = 428,133.60 : x
  2. Step 2: Convert to fraction form
    1,137,635.04/1,705,398.24 = 428,133.60/x
  3. Step 3: Cross multiply
    1,137,635.04x = 1,705,398.24 × 428,133.60
  4. Step 4: Simplify right side
    1,137,635.04x = 730,138,287,924.86
  5. Step 5: Solve for x
    x = 730,138,287,924.86/1,137,635.04
  6. Step 6: Final answer
    x = 641,803.62

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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.