Home / 679,708.47-1,019,562.78-323,643.00

Finding the Fourth Proportional to 679,708.47, 1,019,562.78 and 323,643.00

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Solution

The fourth proportional to 679,708.47, 1,019,562.78 and 323,643.00 is: 485,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,708.47 : 1,019,562.78 = 323,643.00 : x
  2. Step 2: Convert to fraction form
    679,708.47/1,019,562.78 = 323,643.00/x
  3. Step 3: Cross multiply
    679,708.47x = 1,019,562.78 × 323,643.00
  4. Step 4: Simplify right side
    679,708.47x = 329,974,354,289.03
  5. Step 5: Solve for x
    x = 329,974,354,289.03/679,708.47
  6. Step 6: Final answer
    x = 485,464.53

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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.