Home / 752,515.60-1,128,945.78-326,123.01

Finding the Fourth Proportional to 752,515.60, 1,128,945.78 and 326,123.01

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Solution

The fourth proportional to 752,515.60, 1,128,945.78 and 326,123.01 is: 489,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,515.60 : 1,128,945.78 = 326,123.01 : x
  2. Step 2: Convert to fraction form
    752,515.60/1,128,945.78 = 326,123.01/x
  3. Step 3: Cross multiply
    752,515.60x = 1,128,945.78 × 326,123.01
  4. Step 4: Simplify right side
    752,515.60x = 368,175,195,900.40
  5. Step 5: Solve for x
    x = 368,175,195,900.40/752,515.60
  6. Step 6: Final answer
    x = 489,259.22

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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.