Home / 683,750.80-1,026,549.60-399,732.40

Finding the Fourth Proportional to 683,750.80, 1,026,549.60 and 399,732.40

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Solution

The fourth proportional to 683,750.80, 1,026,549.60 and 399,732.40 is: 600,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,750.80 : 1,026,549.60 = 399,732.40 : x
  2. Step 2: Convert to fraction form
    683,750.80/1,026,549.60 = 399,732.40/x
  3. Step 3: Cross multiply
    683,750.80x = 1,026,549.60 × 399,732.40
  4. Step 4: Simplify right side
    683,750.80x = 410,345,135,327.04
  5. Step 5: Solve for x
    x = 410,345,135,327.04/683,750.80
  6. Step 6: Final answer
    x = 600,138.44

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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.