Home / 413,718.20-620,577.30-147,487.40

Finding the Fourth Proportional to 413,718.20, 620,577.30 and 147,487.40

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Solution

The fourth proportional to 413,718.20, 620,577.30 and 147,487.40 is: 221,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,718.20 : 620,577.30 = 147,487.40 : x
  2. Step 2: Convert to fraction form
    413,718.20/620,577.30 = 147,487.40/x
  3. Step 3: Cross multiply
    413,718.20x = 620,577.30 × 147,487.40
  4. Step 4: Simplify right side
    413,718.20x = 91,527,332,476.02
  5. Step 5: Solve for x
    x = 91,527,332,476.02/413,718.20
  6. Step 6: Final answer
    x = 221,231.10

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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.