Home / 784,398.81-1,176,443.29-215,633.15

Finding the Fourth Proportional to 784,398.81, 1,176,443.29 and 215,633.15

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Solution

The fourth proportional to 784,398.81, 1,176,443.29 and 215,633.15 is: 323,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,398.81 : 1,176,443.29 = 215,633.15 : x
  2. Step 2: Convert to fraction form
    784,398.81/1,176,443.29 = 215,633.15/x
  3. Step 3: Cross multiply
    784,398.81x = 1,176,443.29 × 215,633.15
  4. Step 4: Simplify right side
    784,398.81x = 253,680,175,360.17
  5. Step 5: Solve for x
    x = 253,680,175,360.17/784,398.81
  6. Step 6: Final answer
    x = 323,407.14

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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.