Home / 3,115,806.90-4,672,835.55-986,543.70

Finding the Fourth Proportional to 3,115,806.90, 4,672,835.55 and 986,543.70

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Solution

The fourth proportional to 3,115,806.90, 4,672,835.55 and 986,543.70 is: 1,479,538.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,806.90 : 4,672,835.55 = 986,543.70 : x
  2. Step 2: Convert to fraction form
    3,115,806.90/4,672,835.55 = 986,543.70/x
  3. Step 3: Cross multiply
    3,115,806.90x = 4,672,835.55 × 986,543.70
  4. Step 4: Simplify right side
    3,115,806.90x = 4,609,956,472,988.53
  5. Step 5: Solve for x
    x = 4,609,956,472,988.53/3,115,806.90
  6. Step 6: Final answer
    x = 1,479,538.57

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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.