Home / 678,797.33-1,018,417.17-323,765.15

Finding the Fourth Proportional to 678,797.33, 1,018,417.17 and 323,765.15

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Solution

The fourth proportional to 678,797.33, 1,018,417.17 and 323,765.15 is: 485,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,797.33 : 1,018,417.17 = 323,765.15 : x
  2. Step 2: Convert to fraction form
    678,797.33/1,018,417.17 = 323,765.15/x
  3. Step 3: Cross multiply
    678,797.33x = 1,018,417.17 × 323,765.15
  4. Step 4: Simplify right side
    678,797.33x = 329,727,987,807.63
  5. Step 5: Solve for x
    x = 329,727,987,807.63/678,797.33
  6. Step 6: Final answer
    x = 485,753.22

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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.