Home / 989,443.96-1,365,433.08-559,714.96

Finding the Fourth Proportional to 989,443.96, 1,365,433.08 and 559,714.96

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Solution

The fourth proportional to 989,443.96, 1,365,433.08 and 559,714.96 is: 772,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,443.96 : 1,365,433.08 = 559,714.96 : x
  2. Step 2: Convert to fraction form
    989,443.96/1,365,433.08 = 559,714.96/x
  3. Step 3: Cross multiply
    989,443.96x = 1,365,433.08 × 559,714.96
  4. Step 4: Simplify right side
    989,443.96x = 764,253,321,754.88
  5. Step 5: Solve for x
    x = 764,253,321,754.88/989,443.96
  6. Step 6: Final answer
    x = 772,406.88

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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.