Home / 865,631.20-1,298,446.80-655,679.20

Finding the Fourth Proportional to 865,631.20, 1,298,446.80 and 655,679.20

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Solution

The fourth proportional to 865,631.20, 1,298,446.80 and 655,679.20 is: 983,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,631.20 : 1,298,446.80 = 655,679.20 : x
  2. Step 2: Convert to fraction form
    865,631.20/1,298,446.80 = 655,679.20/x
  3. Step 3: Cross multiply
    865,631.20x = 1,298,446.80 × 655,679.20
  4. Step 4: Simplify right side
    865,631.20x = 851,364,559,066.56
  5. Step 5: Solve for x
    x = 851,364,559,066.56/865,631.20
  6. Step 6: Final answer
    x = 983,518.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.