Home / 811,098.72-1,216,713.24-242,438.40

Finding the Fourth Proportional to 811,098.72, 1,216,713.24 and 242,438.40

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Solution

The fourth proportional to 811,098.72, 1,216,713.24 and 242,438.40 is: 363,677.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,098.72 : 1,216,713.24 = 242,438.40 : x
  2. Step 2: Convert to fraction form
    811,098.72/1,216,713.24 = 242,438.40/x
  3. Step 3: Cross multiply
    811,098.72x = 1,216,713.24 × 242,438.40
  4. Step 4: Simplify right side
    811,098.72x = 294,978,011,164.42
  5. Step 5: Solve for x
    x = 294,978,011,164.42/811,098.72
  6. Step 6: Final answer
    x = 363,677.08

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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.