Home / 708,682.40-1,063,153.20-288,000.80

Finding the Fourth Proportional to 708,682.40, 1,063,153.20 and 288,000.80

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Solution

The fourth proportional to 708,682.40, 1,063,153.20 and 288,000.80 is: 432,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,682.40 : 1,063,153.20 = 288,000.80 : x
  2. Step 2: Convert to fraction form
    708,682.40/1,063,153.20 = 288,000.80/x
  3. Step 3: Cross multiply
    708,682.40x = 1,063,153.20 × 288,000.80
  4. Step 4: Simplify right side
    708,682.40x = 306,188,972,122.56
  5. Step 5: Solve for x
    x = 306,188,972,122.56/708,682.40
  6. Step 6: Final answer
    x = 432,053.87

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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.