Home / 718,819.20-1,078,228.80-578,851.20

Finding the Fourth Proportional to 718,819.20, 1,078,228.80 and 578,851.20

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Solution

The fourth proportional to 718,819.20, 1,078,228.80 and 578,851.20 is: 868,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,819.20 : 1,078,228.80 = 578,851.20 : x
  2. Step 2: Convert to fraction form
    718,819.20/1,078,228.80 = 578,851.20/x
  3. Step 3: Cross multiply
    718,819.20x = 1,078,228.80 × 578,851.20
  4. Step 4: Simplify right side
    718,819.20x = 624,134,034,754.56
  5. Step 5: Solve for x
    x = 624,134,034,754.56/718,819.20
  6. Step 6: Final answer
    x = 868,276.80

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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.