Home / 718,820.20-1,078,230.30-578,852.20

Finding the Fourth Proportional to 718,820.20, 1,078,230.30 and 578,852.20

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Solution

The fourth proportional to 718,820.20, 1,078,230.30 and 578,852.20 is: 868,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,820.20 : 1,078,230.30 = 578,852.20 : x
  2. Step 2: Convert to fraction form
    718,820.20/1,078,230.30 = 578,852.20/x
  3. Step 3: Cross multiply
    718,820.20x = 1,078,230.30 × 578,852.20
  4. Step 4: Simplify right side
    718,820.20x = 624,135,981,261.66
  5. Step 5: Solve for x
    x = 624,135,981,261.66/718,820.20
  6. Step 6: Final answer
    x = 868,278.30

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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.