Home / 1,121,422.88-1,547,549.98-637,986.92

Finding the Fourth Proportional to 1,121,422.88, 1,547,549.98 and 637,986.92

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Solution

The fourth proportional to 1,121,422.88, 1,547,549.98 and 637,986.92 is: 880,414.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,422.88 : 1,547,549.98 = 637,986.92 : x
  2. Step 2: Convert to fraction form
    1,121,422.88/1,547,549.98 = 637,986.92/x
  3. Step 3: Cross multiply
    1,121,422.88x = 1,547,549.98 × 637,986.92
  4. Step 4: Simplify right side
    1,121,422.88x = 987,316,645,286.26
  5. Step 5: Solve for x
    x = 987,316,645,286.26/1,121,422.88
  6. Step 6: Final answer
    x = 880,414.22

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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.