Home / 747,521.60-1,120,936.80-326,580.80

Finding the Fourth Proportional to 747,521.60, 1,120,936.80 and 326,580.80

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Solution

The fourth proportional to 747,521.60, 1,120,936.80 and 326,580.80 is: 489,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,521.60 : 1,120,936.80 = 326,580.80 : x
  2. Step 2: Convert to fraction form
    747,521.60/1,120,936.80 = 326,580.80/x
  3. Step 3: Cross multiply
    747,521.60x = 1,120,936.80 × 326,580.80
  4. Step 4: Simplify right side
    747,521.60x = 366,076,436,893.44
  5. Step 5: Solve for x
    x = 366,076,436,893.44/747,521.60
  6. Step 6: Final answer
    x = 489,720.21

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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.