Home / 828,965.55-1,143,972.18-461,434.70

Finding the Fourth Proportional to 828,965.55, 1,143,972.18 and 461,434.70

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Solution

The fourth proportional to 828,965.55, 1,143,972.18 and 461,434.70 is: 636,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,965.55 : 1,143,972.18 = 461,434.70 : x
  2. Step 2: Convert to fraction form
    828,965.55/1,143,972.18 = 461,434.70/x
  3. Step 3: Cross multiply
    828,965.55x = 1,143,972.18 × 461,434.70
  4. Step 4: Simplify right side
    828,965.55x = 527,868,457,379.47
  5. Step 5: Solve for x
    x = 527,868,457,379.47/828,965.55
  6. Step 6: Final answer
    x = 636,779.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.