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Finding the Fourth Proportional to 607,392.42, 911,091.87 and 398,354.10

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Solution

The fourth proportional to 607,392.42, 911,091.87 and 398,354.10 is: 597,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,392.42 : 911,091.87 = 398,354.10 : x
  2. Step 2: Convert to fraction form
    607,392.42/911,091.87 = 398,354.10/x
  3. Step 3: Cross multiply
    607,392.42x = 911,091.87 × 398,354.10
  4. Step 4: Simplify right side
    607,392.42x = 362,937,181,891.17
  5. Step 5: Solve for x
    x = 362,937,181,891.17/607,392.42
  6. Step 6: Final answer
    x = 597,533.27

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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.