Home / 687,787.48-1,031,972.84-333,065.80

Finding the Fourth Proportional to 687,787.48, 1,031,972.84 and 333,065.80

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Solution

The fourth proportional to 687,787.48, 1,031,972.84 and 333,065.80 is: 499,739.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,787.48 : 1,031,972.84 = 333,065.80 : x
  2. Step 2: Convert to fraction form
    687,787.48/1,031,972.84 = 333,065.80/x
  3. Step 3: Cross multiply
    687,787.48x = 1,031,972.84 × 333,065.80
  4. Step 4: Simplify right side
    687,787.48x = 343,714,859,532.87
  5. Step 5: Solve for x
    x = 343,714,859,532.87/687,787.48
  6. Step 6: Final answer
    x = 499,739.92

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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.