Home / 921,025.76-1,380,011.28-560,104.80

Finding the Fourth Proportional to 921,025.76, 1,380,011.28 and 560,104.80

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Solution

The fourth proportional to 921,025.76, 1,380,011.28 and 560,104.80 is: 839,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,025.76 : 1,380,011.28 = 560,104.80 : x
  2. Step 2: Convert to fraction form
    921,025.76/1,380,011.28 = 560,104.80/x
  3. Step 3: Cross multiply
    921,025.76x = 1,380,011.28 × 560,104.80
  4. Step 4: Simplify right side
    921,025.76x = 772,950,941,982.14
  5. Step 5: Solve for x
    x = 772,950,941,982.14/921,025.76
  6. Step 6: Final answer
    x = 839,228.36

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Double scale
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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.