Home / 566,280.39-781,467.06-311,631.58

Finding the Fourth Proportional to 566,280.39, 781,467.06 and 311,631.58

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Solution

The fourth proportional to 566,280.39, 781,467.06 and 311,631.58 is: 430,051.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,280.39 : 781,467.06 = 311,631.58 : x
  2. Step 2: Convert to fraction form
    566,280.39/781,467.06 = 311,631.58/x
  3. Step 3: Cross multiply
    566,280.39x = 781,467.06 × 311,631.58
  4. Step 4: Simplify right side
    566,280.39x = 243,529,813,067.60
  5. Step 5: Solve for x
    x = 243,529,813,067.60/566,280.39
  6. Step 6: Final answer
    x = 430,051.64

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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.