Home / 1,097,961.78-1,513,984.05-715,278.90

Finding the Fourth Proportional to 1,097,961.78, 1,513,984.05 and 715,278.90

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Solution

The fourth proportional to 1,097,961.78, 1,513,984.05 and 715,278.90 is: 986,301.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,961.78 : 1,513,984.05 = 715,278.90 : x
  2. Step 2: Convert to fraction form
    1,097,961.78/1,513,984.05 = 715,278.90/x
  3. Step 3: Cross multiply
    1,097,961.78x = 1,513,984.05 × 715,278.90
  4. Step 4: Simplify right side
    1,097,961.78x = 1,082,920,845,901.55
  5. Step 5: Solve for x
    x = 1,082,920,845,901.55/1,097,961.78
  6. Step 6: Final answer
    x = 986,301.04

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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.