Home / 566,280.61-781,467.35-311,631.80

Finding the Fourth Proportional to 566,280.61, 781,467.35 and 311,631.80

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Solution

The fourth proportional to 566,280.61, 781,467.35 and 311,631.80 is: 430,051.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,280.61 : 781,467.35 = 311,631.80 : x
  2. Step 2: Convert to fraction form
    566,280.61/781,467.35 = 311,631.80/x
  3. Step 3: Cross multiply
    566,280.61x = 781,467.35 × 311,631.80
  4. Step 4: Simplify right side
    566,280.61x = 243,530,078,481.38
  5. Step 5: Solve for x
    x = 243,530,078,481.38/566,280.61
  6. Step 6: Final answer
    x = 430,051.94

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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.