Home / 858,632.80-1,287,949.20-606,690.40

Finding the Fourth Proportional to 858,632.80, 1,287,949.20 and 606,690.40

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Solution

The fourth proportional to 858,632.80, 1,287,949.20 and 606,690.40 is: 910,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,632.80 : 1,287,949.20 = 606,690.40 : x
  2. Step 2: Convert to fraction form
    858,632.80/1,287,949.20 = 606,690.40/x
  3. Step 3: Cross multiply
    858,632.80x = 1,287,949.20 × 606,690.40
  4. Step 4: Simplify right side
    858,632.80x = 781,386,415,327.68
  5. Step 5: Solve for x
    x = 781,386,415,327.68/858,632.80
  6. Step 6: Final answer
    x = 910,035.60

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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.