Home / 745,175.20-1,118,504.40-345,906.40

Finding the Fourth Proportional to 745,175.20, 1,118,504.40 and 345,906.40

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Solution

The fourth proportional to 745,175.20, 1,118,504.40 and 345,906.40 is: 519,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,175.20 : 1,118,504.40 = 345,906.40 : x
  2. Step 2: Convert to fraction form
    745,175.20/1,118,504.40 = 345,906.40/x
  3. Step 3: Cross multiply
    745,175.20x = 1,118,504.40 × 345,906.40
  4. Step 4: Simplify right side
    745,175.20x = 386,897,830,388.16
  5. Step 5: Solve for x
    x = 386,897,830,388.16/745,175.20
  6. Step 6: Final answer
    x = 519,203.85

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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.