Home / 762,513.85-1,051,406.33-486,502.40

Finding the Fourth Proportional to 762,513.85, 1,051,406.33 and 486,502.40

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Solution

The fourth proportional to 762,513.85, 1,051,406.33 and 486,502.40 is: 670,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,513.85 : 1,051,406.33 = 486,502.40 : x
  2. Step 2: Convert to fraction form
    762,513.85/1,051,406.33 = 486,502.40/x
  3. Step 3: Cross multiply
    762,513.85x = 1,051,406.33 × 486,502.40
  4. Step 4: Simplify right side
    762,513.85x = 511,511,703,116.20
  5. Step 5: Solve for x
    x = 511,511,703,116.20/762,513.85
  6. Step 6: Final answer
    x = 670,822.83

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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.