Home / 852,381.12-1,278,779.68-283,761.28

Finding the Fourth Proportional to 852,381.12, 1,278,779.68 and 283,761.28

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Solution

The fourth proportional to 852,381.12, 1,278,779.68 and 283,761.28 is: 425,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,381.12 : 1,278,779.68 = 283,761.28 : x
  2. Step 2: Convert to fraction form
    852,381.12/1,278,779.68 = 283,761.28/x
  3. Step 3: Cross multiply
    852,381.12x = 1,278,779.68 × 283,761.28
  4. Step 4: Simplify right side
    852,381.12x = 362,868,158,834.79
  5. Step 5: Solve for x
    x = 362,868,158,834.79/852,381.12
  6. Step 6: Final answer
    x = 425,711.16

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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.