Home / 768,432.25-1,060,447.44-428,900.50

Finding the Fourth Proportional to 768,432.25, 1,060,447.44 and 428,900.50

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Solution

The fourth proportional to 768,432.25, 1,060,447.44 and 428,900.50 is: 591,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,432.25 : 1,060,447.44 = 428,900.50 : x
  2. Step 2: Convert to fraction form
    768,432.25/1,060,447.44 = 428,900.50/x
  3. Step 3: Cross multiply
    768,432.25x = 1,060,447.44 × 428,900.50
  4. Step 4: Simplify right side
    768,432.25x = 454,826,437,239.72
  5. Step 5: Solve for x
    x = 454,826,437,239.72/768,432.25
  6. Step 6: Final answer
    x = 591,888.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.