Home / 533,721.16-736,414.72-318,819.28

Finding the Fourth Proportional to 533,721.16, 736,414.72 and 318,819.28

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Solution

The fourth proportional to 533,721.16, 736,414.72 and 318,819.28 is: 439,898.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,721.16 : 736,414.72 = 318,819.28 : x
  2. Step 2: Convert to fraction form
    533,721.16/736,414.72 = 318,819.28/x
  3. Step 3: Cross multiply
    533,721.16x = 736,414.72 × 318,819.28
  4. Step 4: Simplify right side
    533,721.16x = 234,783,210,811.80
  5. Step 5: Solve for x
    x = 234,783,210,811.80/533,721.16
  6. Step 6: Final answer
    x = 439,898.64

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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.