Home / 981,928.17-1,355,047.65-552,208.05

Finding the Fourth Proportional to 981,928.17, 1,355,047.65 and 552,208.05

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Solution

The fourth proportional to 981,928.17, 1,355,047.65 and 552,208.05 is: 762,039.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,928.17 : 1,355,047.65 = 552,208.05 : x
  2. Step 2: Convert to fraction form
    981,928.17/1,355,047.65 = 552,208.05/x
  3. Step 3: Cross multiply
    981,928.17x = 1,355,047.65 × 552,208.05
  4. Step 4: Simplify right side
    981,928.17x = 748,268,220,463.58
  5. Step 5: Solve for x
    x = 748,268,220,463.58/981,928.17
  6. Step 6: Final answer
    x = 762,039.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.