Home / 679,710.47-1,019,565.78-323,645

Finding the Fourth Proportional to 679,710.47, 1,019,565.78 and 323,645

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Solution

The fourth proportional to 679,710.47, 1,019,565.78 and 323,645 is: 485,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,710.47 : 1,019,565.78 = 323,645 : x
  2. Step 2: Convert to fraction form
    679,710.47/1,019,565.78 = 323,645/x
  3. Step 3: Cross multiply
    679,710.47x = 1,019,565.78 × 323,645
  4. Step 4: Simplify right side
    679,710.47x = 329,977,366,868.10
  5. Step 5: Solve for x
    x = 329,977,366,868.10/679,710.47
  6. Step 6: Final answer
    x = 485,467.54

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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.