Home / 752,513.10-1,128,942.02-326,120.50

Finding the Fourth Proportional to 752,513.10, 1,128,942.02 and 326,120.50

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Solution

The fourth proportional to 752,513.10, 1,128,942.02 and 326,120.50 is: 489,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,513.10 : 1,128,942.02 = 326,120.50 : x
  2. Step 2: Convert to fraction form
    752,513.10/1,128,942.02 = 326,120.50/x
  3. Step 3: Cross multiply
    752,513.10x = 1,128,942.02 × 326,120.50
  4. Step 4: Simplify right side
    752,513.10x = 368,171,136,033.41
  5. Step 5: Solve for x
    x = 368,171,136,033.41/752,513.10
  6. Step 6: Final answer
    x = 489,255.45

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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.