Home / 745,079.05-1,028,180.52-422,769.91

Finding the Fourth Proportional to 745,079.05, 1,028,180.52 and 422,769.91

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Solution

The fourth proportional to 745,079.05, 1,028,180.52 and 422,769.91 is: 583,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,079.05 : 1,028,180.52 = 422,769.91 : x
  2. Step 2: Convert to fraction form
    745,079.05/1,028,180.52 = 422,769.91/x
  3. Step 3: Cross multiply
    745,079.05x = 1,028,180.52 × 422,769.91
  4. Step 4: Simplify right side
    745,079.05x = 434,683,785,904.15
  5. Step 5: Solve for x
    x = 434,683,785,904.15/745,079.05
  6. Step 6: Final answer
    x = 583,406.27

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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.