Home / 976,420.80-1,465,495.20-576,561.60

Finding the Fourth Proportional to 976,420.80, 1,465,495.20 and 576,561.60

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Solution

The fourth proportional to 976,420.80, 1,465,495.20 and 576,561.60 is: 865,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,420.80 : 1,465,495.20 = 576,561.60 : x
  2. Step 2: Convert to fraction form
    976,420.80/1,465,495.20 = 576,561.60/x
  3. Step 3: Cross multiply
    976,420.80x = 1,465,495.20 × 576,561.60
  4. Step 4: Simplify right side
    976,420.80x = 844,948,257,304.32
  5. Step 5: Solve for x
    x = 844,948,257,304.32/976,420.80
  6. Step 6: Final answer
    x = 865,352.58

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1.5x scale

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.