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Finding the Fourth Proportional to 566,480.88, 781,735.32 and 311,825.52

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Solution

The fourth proportional to 566,480.88, 781,735.32 and 311,825.52 is: 430,314.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,480.88 : 781,735.32 = 311,825.52 : x
  2. Step 2: Convert to fraction form
    566,480.88/781,735.32 = 311,825.52/x
  3. Step 3: Cross multiply
    566,480.88x = 781,735.32 × 311,825.52
  4. Step 4: Simplify right side
    566,480.88x = 243,765,022,661.37
  5. Step 5: Solve for x
    x = 243,765,022,661.37/566,480.88
  6. Step 6: Final answer
    x = 430,314.65

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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.