Home / 668,383.20-1,002,574.80-489,021.87

Finding the Fourth Proportional to 668,383.20, 1,002,574.80 and 489,021.87

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Solution

The fourth proportional to 668,383.20, 1,002,574.80 and 489,021.87 is: 733,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,383.20 : 1,002,574.80 = 489,021.87 : x
  2. Step 2: Convert to fraction form
    668,383.20/1,002,574.80 = 489,021.87/x
  3. Step 3: Cross multiply
    668,383.20x = 1,002,574.80 × 489,021.87
  4. Step 4: Simplify right side
    668,383.20x = 490,280,998,498.00
  5. Step 5: Solve for x
    x = 490,280,998,498.00/668,383.20
  6. Step 6: Final answer
    x = 733,532.80

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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.