Home / 859,340.40-1,289,010.60-486,092.40

Finding the Fourth Proportional to 859,340.40, 1,289,010.60 and 486,092.40

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Solution

The fourth proportional to 859,340.40, 1,289,010.60 and 486,092.40 is: 729,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,340.40 : 1,289,010.60 = 486,092.40 : x
  2. Step 2: Convert to fraction form
    859,340.40/1,289,010.60 = 486,092.40/x
  3. Step 3: Cross multiply
    859,340.40x = 1,289,010.60 × 486,092.40
  4. Step 4: Simplify right side
    859,340.40x = 626,578,256,179.44
  5. Step 5: Solve for x
    x = 626,578,256,179.44/859,340.40
  6. Step 6: Final answer
    x = 729,138.60

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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.