Home / 486,913.40-730,370.10-154,489.40

Finding the Fourth Proportional to 486,913.40, 730,370.10 and 154,489.40

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Solution

The fourth proportional to 486,913.40, 730,370.10 and 154,489.40 is: 231,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,913.40 : 730,370.10 = 154,489.40 : x
  2. Step 2: Convert to fraction form
    486,913.40/730,370.10 = 154,489.40/x
  3. Step 3: Cross multiply
    486,913.40x = 730,370.10 × 154,489.40
  4. Step 4: Simplify right side
    486,913.40x = 112,834,438,526.94
  5. Step 5: Solve for x
    x = 112,834,438,526.94/486,913.40
  6. Step 6: Final answer
    x = 231,734.10

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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.