Home / 566,280.64-781,467.40-311,631.83

Finding the Fourth Proportional to 566,280.64, 781,467.40 and 311,631.83

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Solution

The fourth proportional to 566,280.64, 781,467.40 and 311,631.83 is: 430,051.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,280.64 : 781,467.40 = 311,631.83 : x
  2. Step 2: Convert to fraction form
    566,280.64/781,467.40 = 311,631.83/x
  3. Step 3: Cross multiply
    566,280.64x = 781,467.40 × 311,631.83
  4. Step 4: Simplify right side
    566,280.64x = 243,530,115,947.34
  5. Step 5: Solve for x
    x = 243,530,115,947.34/566,280.64
  6. Step 6: Final answer
    x = 430,051.99

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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.