Home / 566,277.31-781,462.82-311,628.49

Finding the Fourth Proportional to 566,277.31, 781,462.82 and 311,628.49

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Solution

The fourth proportional to 566,277.31, 781,462.82 and 311,628.49 is: 430,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,277.31 : 781,462.82 = 311,628.49 : x
  2. Step 2: Convert to fraction form
    566,277.31/781,462.82 = 311,628.49/x
  3. Step 3: Cross multiply
    566,277.31x = 781,462.82 × 311,628.49
  4. Step 4: Simplify right side
    566,277.31x = 243,526,078,587.74
  5. Step 5: Solve for x
    x = 243,526,078,587.74/566,277.31
  6. Step 6: Final answer
    x = 430,047.39

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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.