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Finding the Fourth Proportional to 774,550, 1,160,142.40 and 374,351.52

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Solution

The fourth proportional to 774,550, 1,160,142.40 and 374,351.52 is: 560,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,550 : 1,160,142.40 = 374,351.52 : x
  2. Step 2: Convert to fraction form
    774,550/1,160,142.40 = 374,351.52/x
  3. Step 3: Cross multiply
    774,550x = 1,160,142.40 × 374,351.52
  4. Step 4: Simplify right side
    774,550x = 434,301,070,856.45
  5. Step 5: Solve for x
    x = 434,301,070,856.45/774,550
  6. Step 6: Final answer
    x = 560,714.05

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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.