Home / 818,539.77-1,227,752.46-306,107.39

Finding the Fourth Proportional to 818,539.77, 1,227,752.46 and 306,107.39

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Solution

The fourth proportional to 818,539.77, 1,227,752.46 and 306,107.39 is: 459,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,539.77 : 1,227,752.46 = 306,107.39 : x
  2. Step 2: Convert to fraction form
    818,539.77/1,227,752.46 = 306,107.39/x
  3. Step 3: Cross multiply
    818,539.77x = 1,227,752.46 × 306,107.39
  4. Step 4: Simplify right side
    818,539.77x = 375,824,094,957.92
  5. Step 5: Solve for x
    x = 375,824,094,957.92/818,539.77
  6. Step 6: Final answer
    x = 459,139.69

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Double scale
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Similar ratio
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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.