Home / 752,393.83-1,128,065.85-278,952.07

Finding the Fourth Proportional to 752,393.83, 1,128,065.85 and 278,952.07

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Solution

The fourth proportional to 752,393.83, 1,128,065.85 and 278,952.07 is: 418,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,393.83 : 1,128,065.85 = 278,952.07 : x
  2. Step 2: Convert to fraction form
    752,393.83/1,128,065.85 = 278,952.07/x
  3. Step 3: Cross multiply
    752,393.83x = 1,128,065.85 × 278,952.07
  4. Step 4: Simplify right side
    752,393.83x = 314,676,303,953.81
  5. Step 5: Solve for x
    x = 314,676,303,953.81/752,393.83
  6. Step 6: Final answer
    x = 418,233.50

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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.