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Finding the Fourth Proportional to 665,934.30, 998,901.45 and 245,374.20

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Solution

The fourth proportional to 665,934.30, 998,901.45 and 245,374.20 is: 368,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,934.30 : 998,901.45 = 245,374.20 : x
  2. Step 2: Convert to fraction form
    665,934.30/998,901.45 = 245,374.20/x
  3. Step 3: Cross multiply
    665,934.30x = 998,901.45 × 245,374.20
  4. Step 4: Simplify right side
    665,934.30x = 245,104,644,172.59
  5. Step 5: Solve for x
    x = 245,104,644,172.59/665,934.30
  6. Step 6: Final answer
    x = 368,061.30

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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.