Home / 1,342,779.75-2,013,948.20-431,916.65

Finding the Fourth Proportional to 1,342,779.75, 2,013,948.20 and 431,916.65

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Solution

The fourth proportional to 1,342,779.75, 2,013,948.20 and 431,916.65 is: 647,803.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,779.75 : 2,013,948.20 = 431,916.65 : x
  2. Step 2: Convert to fraction form
    1,342,779.75/2,013,948.20 = 431,916.65/x
  3. Step 3: Cross multiply
    1,342,779.75x = 2,013,948.20 × 431,916.65
  4. Step 4: Simplify right side
    1,342,779.75x = 869,857,759,817.53
  5. Step 5: Solve for x
    x = 869,857,759,817.53/1,342,779.75
  6. Step 6: Final answer
    x = 647,803.75

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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.