Home / 748,722.05-1,123,199.19-316,441.33

Finding the Fourth Proportional to 748,722.05, 1,123,199.19 and 316,441.33

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Solution

The fourth proportional to 748,722.05, 1,123,199.19 and 316,441.33 is: 474,711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,722.05 : 1,123,199.19 = 316,441.33 : x
  2. Step 2: Convert to fraction form
    748,722.05/1,123,199.19 = 316,441.33/x
  3. Step 3: Cross multiply
    748,722.05x = 1,123,199.19 × 316,441.33
  4. Step 4: Simplify right side
    748,722.05x = 355,426,640,766.47
  5. Step 5: Solve for x
    x = 355,426,640,766.47/748,722.05
  6. Step 6: Final answer
    x = 474,711.07

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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.