Home / 976,543.80-1,464,815.70-644,119.80

Finding the Fourth Proportional to 976,543.80, 1,464,815.70 and 644,119.80

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Solution

The fourth proportional to 976,543.80, 1,464,815.70 and 644,119.80 is: 966,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,543.80 : 1,464,815.70 = 644,119.80 : x
  2. Step 2: Convert to fraction form
    976,543.80/1,464,815.70 = 644,119.80/x
  3. Step 3: Cross multiply
    976,543.80x = 1,464,815.70 × 644,119.80
  4. Step 4: Simplify right side
    976,543.80x = 943,516,795,720.86
  5. Step 5: Solve for x
    x = 943,516,795,720.86/976,543.80
  6. Step 6: Final answer
    x = 966,179.70

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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.