Home / 786,451.20-1,085,292.23-442,287.06

Finding the Fourth Proportional to 786,451.20, 1,085,292.23 and 442,287.06

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Solution

The fourth proportional to 786,451.20, 1,085,292.23 and 442,287.06 is: 610,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,451.20 : 1,085,292.23 = 442,287.06 : x
  2. Step 2: Convert to fraction form
    786,451.20/1,085,292.23 = 442,287.06/x
  3. Step 3: Cross multiply
    786,451.20x = 1,085,292.23 × 442,287.06
  4. Step 4: Simplify right side
    786,451.20x = 480,010,709,647.54
  5. Step 5: Solve for x
    x = 480,010,709,647.54/786,451.20
  6. Step 6: Final answer
    x = 610,350.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.