Home / 1,387,149.70-2,079,342.15-637,888.90

Finding the Fourth Proportional to 1,387,149.70, 2,079,342.15 and 637,888.90

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Solution

The fourth proportional to 1,387,149.70, 2,079,342.15 and 637,888.90 is: 956,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,149.70 : 2,079,342.15 = 637,888.90 : x
  2. Step 2: Convert to fraction form
    1,387,149.70/2,079,342.15 = 637,888.90/x
  3. Step 3: Cross multiply
    1,387,149.70x = 2,079,342.15 × 637,888.90
  4. Step 4: Simplify right side
    1,387,149.70x = 1,326,389,276,787.14
  5. Step 5: Solve for x
    x = 1,326,389,276,787.14/1,387,149.70
  6. Step 6: Final answer
    x = 956,197.65

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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.