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Finding the Fourth Proportional to 578,949.60, 868,424.40 and 548,536.80

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Solution

The fourth proportional to 578,949.60, 868,424.40 and 548,536.80 is: 822,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,949.60 : 868,424.40 = 548,536.80 : x
  2. Step 2: Convert to fraction form
    578,949.60/868,424.40 = 548,536.80/x
  3. Step 3: Cross multiply
    578,949.60x = 868,424.40 × 548,536.80
  4. Step 4: Simplify right side
    578,949.60x = 476,362,741,417.92
  5. Step 5: Solve for x
    x = 476,362,741,417.92/578,949.60
  6. Step 6: Final answer
    x = 822,805.20

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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.