Home / 486,547.30-729,432.15-205,833.70

Finding the Fourth Proportional to 486,547.30, 729,432.15 and 205,833.70

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Solution

The fourth proportional to 486,547.30, 729,432.15 and 205,833.70 is: 308,586.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,547.30 : 729,432.15 = 205,833.70 : x
  2. Step 2: Convert to fraction form
    486,547.30/729,432.15 = 205,833.70/x
  3. Step 3: Cross multiply
    486,547.30x = 729,432.15 × 205,833.70
  4. Step 4: Simplify right side
    486,547.30x = 150,141,718,333.46
  5. Step 5: Solve for x
    x = 150,141,718,333.46/486,547.30
  6. Step 6: Final answer
    x = 308,586.07

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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.