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Finding the Fourth Proportional to 655,655.18, 983,233.66 and 313,747.65

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Solution

The fourth proportional to 655,655.18, 983,233.66 and 313,747.65 is: 470,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,655.18 : 983,233.66 = 313,747.65 : x
  2. Step 2: Convert to fraction form
    655,655.18/983,233.66 = 313,747.65/x
  3. Step 3: Cross multiply
    655,655.18x = 983,233.66 × 313,747.65
  4. Step 4: Simplify right side
    655,655.18x = 308,487,253,677.57
  5. Step 5: Solve for x
    x = 308,487,253,677.57/655,655.18
  6. Step 6: Final answer
    x = 470,502.27

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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.