Home / 770,672.40-1,156,008.60-328,304.40

Finding the Fourth Proportional to 770,672.40, 1,156,008.60 and 328,304.40

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Solution

The fourth proportional to 770,672.40, 1,156,008.60 and 328,304.40 is: 492,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,672.40 : 1,156,008.60 = 328,304.40 : x
  2. Step 2: Convert to fraction form
    770,672.40/1,156,008.60 = 328,304.40/x
  3. Step 3: Cross multiply
    770,672.40x = 1,156,008.60 × 328,304.40
  4. Step 4: Simplify right side
    770,672.40x = 379,522,709,817.84
  5. Step 5: Solve for x
    x = 379,522,709,817.84/770,672.40
  6. Step 6: Final answer
    x = 492,456.60

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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.