Home / 1,078,623.72-1,488,591.60-625,885.56

Finding the Fourth Proportional to 1,078,623.72, 1,488,591.60 and 625,885.56

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Solution

The fourth proportional to 1,078,623.72, 1,488,591.60 and 625,885.56 is: 863,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,623.72 : 1,488,591.60 = 625,885.56 : x
  2. Step 2: Convert to fraction form
    1,078,623.72/1,488,591.60 = 625,885.56/x
  3. Step 3: Cross multiply
    1,078,623.72x = 1,488,591.60 × 625,885.56
  4. Step 4: Simplify right side
    1,078,623.72x = 931,687,987,177.30
  5. Step 5: Solve for x
    x = 931,687,987,177.30/1,078,623.72
  6. Step 6: Final answer
    x = 863,774.80

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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.