Home / 784,398.56-1,176,442.91-215,632.90

Finding the Fourth Proportional to 784,398.56, 1,176,442.91 and 215,632.90

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Solution

The fourth proportional to 784,398.56, 1,176,442.91 and 215,632.90 is: 323,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,398.56 : 1,176,442.91 = 215,632.90 : x
  2. Step 2: Convert to fraction form
    784,398.56/1,176,442.91 = 215,632.90/x
  3. Step 3: Cross multiply
    784,398.56x = 1,176,442.91 × 215,632.90
  4. Step 4: Simplify right side
    784,398.56x = 253,679,801,339.07
  5. Step 5: Solve for x
    x = 253,679,801,339.07/784,398.56
  6. Step 6: Final answer
    x = 323,406.77

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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.