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Finding the Fourth Proportional to 607,003.20, 910,418.40 and 207,662.40

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Solution

The fourth proportional to 607,003.20, 910,418.40 and 207,662.40 is: 311,464.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,003.20 : 910,418.40 = 207,662.40 : x
  2. Step 2: Convert to fraction form
    607,003.20/910,418.40 = 207,662.40/x
  3. Step 3: Cross multiply
    607,003.20x = 910,418.40 × 207,662.40
  4. Step 4: Simplify right side
    607,003.20x = 189,059,669,948.16
  5. Step 5: Solve for x
    x = 189,059,669,948.16/607,003.20
  6. Step 6: Final answer
    x = 311,464.04

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1.5x scale

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.