Home / 976,540.80-1,464,811.20-644,116.80

Finding the Fourth Proportional to 976,540.80, 1,464,811.20 and 644,116.80

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Solution

The fourth proportional to 976,540.80, 1,464,811.20 and 644,116.80 is: 966,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,540.80 : 1,464,811.20 = 644,116.80 : x
  2. Step 2: Convert to fraction form
    976,540.80/1,464,811.20 = 644,116.80/x
  3. Step 3: Cross multiply
    976,540.80x = 1,464,811.20 × 644,116.80
  4. Step 4: Simplify right side
    976,540.80x = 943,509,502,748.16
  5. Step 5: Solve for x
    x = 943,509,502,748.16/976,540.80
  6. Step 6: Final answer
    x = 966,175.20

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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.