Home / 566,278.42-781,464.36-311,629.60

Finding the Fourth Proportional to 566,278.42, 781,464.36 and 311,629.60

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Solution

The fourth proportional to 566,278.42, 781,464.36 and 311,629.60 is: 430,048.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,278.42 : 781,464.36 = 311,629.60 : x
  2. Step 2: Convert to fraction form
    566,278.42/781,464.36 = 311,629.60/x
  3. Step 3: Cross multiply
    566,278.42x = 781,464.36 × 311,629.60
  4. Step 4: Simplify right side
    566,278.42x = 243,527,425,921.06
  5. Step 5: Solve for x
    x = 243,527,425,921.06/566,278.42
  6. Step 6: Final answer
    x = 430,048.93

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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.