Home / 752,511.65-1,128,939.89-326,119.05

Finding the Fourth Proportional to 752,511.65, 1,128,939.89 and 326,119.05

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Solution

The fourth proportional to 752,511.65, 1,128,939.89 and 326,119.05 is: 489,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,511.65 : 1,128,939.89 = 326,119.05 : x
  2. Step 2: Convert to fraction form
    752,511.65/1,128,939.89 = 326,119.05/x
  3. Step 3: Cross multiply
    752,511.65x = 1,128,939.89 × 326,119.05
  4. Step 4: Simplify right side
    752,511.65x = 368,168,802,803.31
  5. Step 5: Solve for x
    x = 368,168,802,803.31/752,511.65
  6. Step 6: Final answer
    x = 489,253.30

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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.