Home / 768,432.96-1,060,339.68-428,915.52

Finding the Fourth Proportional to 768,432.96, 1,060,339.68 and 428,915.52

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Solution

The fourth proportional to 768,432.96, 1,060,339.68 and 428,915.52 is: 591,848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,432.96 : 1,060,339.68 = 428,915.52 : x
  2. Step 2: Convert to fraction form
    768,432.96/1,060,339.68 = 428,915.52/x
  3. Step 3: Cross multiply
    768,432.96x = 1,060,339.68 × 428,915.52
  4. Step 4: Simplify right side
    768,432.96x = 454,796,145,223.83
  5. Step 5: Solve for x
    x = 454,796,145,223.83/768,432.96
  6. Step 6: Final answer
    x = 591,848.83

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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.