Home / 679,199.10-1,019,218.78-395,023.02

Finding the Fourth Proportional to 679,199.10, 1,019,218.78 and 395,023.02

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Solution

The fourth proportional to 679,199.10, 1,019,218.78 and 395,023.02 is: 592,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,199.10 : 1,019,218.78 = 395,023.02 : x
  2. Step 2: Convert to fraction form
    679,199.10/1,019,218.78 = 395,023.02/x
  3. Step 3: Cross multiply
    679,199.10x = 1,019,218.78 × 395,023.02
  4. Step 4: Simplify right side
    679,199.10x = 402,614,880,516.32
  5. Step 5: Solve for x
    x = 402,614,880,516.32/679,199.10
  6. Step 6: Final answer
    x = 592,778.88

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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.