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Finding the Fourth Proportional to 607,034.40, 911,102.40 and 307,723.20

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Solution

The fourth proportional to 607,034.40, 911,102.40 and 307,723.20 is: 461,864.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,034.40 : 911,102.40 = 307,723.20 : x
  2. Step 2: Convert to fraction form
    607,034.40/911,102.40 = 307,723.20/x
  3. Step 3: Cross multiply
    607,034.40x = 911,102.40 × 307,723.20
  4. Step 4: Simplify right side
    607,034.40x = 280,367,346,055.68
  5. Step 5: Solve for x
    x = 280,367,346,055.68/607,034.40
  6. Step 6: Final answer
    x = 461,864.02

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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.