Home / 985,897.72-1,359,306.12-822,788.88

Finding the Fourth Proportional to 985,897.72, 1,359,306.12 and 822,788.88

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Solution

The fourth proportional to 985,897.72, 1,359,306.12 and 822,788.88 is: 1,134,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,897.72 : 1,359,306.12 = 822,788.88 : x
  2. Step 2: Convert to fraction form
    985,897.72/1,359,306.12 = 822,788.88/x
  3. Step 3: Cross multiply
    985,897.72x = 1,359,306.12 × 822,788.88
  4. Step 4: Simplify right side
    985,897.72x = 1,118,421,960,051.95
  5. Step 5: Solve for x
    x = 1,118,421,960,051.95/985,897.72
  6. Step 6: Final answer
    x = 1,134,419.87

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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.