Home / 1,368,131.38-1,887,561-885,307.38

Finding the Fourth Proportional to 1,368,131.38, 1,887,561 and 885,307.38

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Solution

The fourth proportional to 1,368,131.38, 1,887,561 and 885,307.38 is: 1,221,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,131.38 : 1,887,561 = 885,307.38 : x
  2. Step 2: Convert to fraction form
    1,368,131.38/1,887,561 = 885,307.38/x
  3. Step 3: Cross multiply
    1,368,131.38x = 1,887,561 × 885,307.38
  4. Step 4: Simplify right side
    1,368,131.38x = 1,671,071,683,500.18
  5. Step 5: Solve for x
    x = 1,671,071,683,500.18/1,368,131.38
  6. Step 6: Final answer
    x = 1,221,426.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.