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Finding the Fourth Proportional to 939,561.60, 1,407,009.60 and 752,937.60

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Solution

The fourth proportional to 939,561.60, 1,407,009.60 and 752,937.60 is: 1,127,536.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,561.60 : 1,407,009.60 = 752,937.60 : x
  2. Step 2: Convert to fraction form
    939,561.60/1,407,009.60 = 752,937.60/x
  3. Step 3: Cross multiply
    939,561.60x = 1,407,009.60 × 752,937.60
  4. Step 4: Simplify right side
    939,561.60x = 1,059,390,431,400.96
  5. Step 5: Solve for x
    x = 1,059,390,431,400.96/939,561.60
  6. Step 6: Final answer
    x = 1,127,536.96

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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.