Home / 486,111.20-729,166.80-297,154.40

Finding the Fourth Proportional to 486,111.20, 729,166.80 and 297,154.40

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Solution

The fourth proportional to 486,111.20, 729,166.80 and 297,154.40 is: 445,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,111.20 : 729,166.80 = 297,154.40 : x
  2. Step 2: Convert to fraction form
    486,111.20/729,166.80 = 297,154.40/x
  3. Step 3: Cross multiply
    486,111.20x = 729,166.80 × 297,154.40
  4. Step 4: Simplify right side
    486,111.20x = 216,675,122,953.92
  5. Step 5: Solve for x
    x = 216,675,122,953.92/486,111.20
  6. Step 6: Final answer
    x = 445,731.60

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Similar ratio
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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.