Home / 858,638.80-1,287,958.20-606,696.40

Finding the Fourth Proportional to 858,638.80, 1,287,958.20 and 606,696.40

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Solution

The fourth proportional to 858,638.80, 1,287,958.20 and 606,696.40 is: 910,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,638.80 : 1,287,958.20 = 606,696.40 : x
  2. Step 2: Convert to fraction form
    858,638.80/1,287,958.20 = 606,696.40/x
  3. Step 3: Cross multiply
    858,638.80x = 1,287,958.20 × 606,696.40
  4. Step 4: Simplify right side
    858,638.80x = 781,399,603,290.48
  5. Step 5: Solve for x
    x = 781,399,603,290.48/858,638.80
  6. Step 6: Final answer
    x = 910,044.60

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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.