Home / 1,387,148.70-2,079,340.65-637,887.90

Finding the Fourth Proportional to 1,387,148.70, 2,079,340.65 and 637,887.90

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Solution

The fourth proportional to 1,387,148.70, 2,079,340.65 and 637,887.90 is: 956,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,148.70 : 2,079,340.65 = 637,887.90 : x
  2. Step 2: Convert to fraction form
    1,387,148.70/2,079,340.65 = 637,887.90/x
  3. Step 3: Cross multiply
    1,387,148.70x = 2,079,340.65 × 637,887.90
  4. Step 4: Simplify right side
    1,387,148.70x = 1,326,386,240,613.14
  5. Step 5: Solve for x
    x = 1,326,386,240,613.14/1,387,148.70
  6. Step 6: Final answer
    x = 956,196.15

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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.