Home / 566,280.74-781,467.55-311,631.93

Finding the Fourth Proportional to 566,280.74, 781,467.55 and 311,631.93

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Solution

The fourth proportional to 566,280.74, 781,467.55 and 311,631.93 is: 430,052.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,280.74 : 781,467.55 = 311,631.93 : x
  2. Step 2: Convert to fraction form
    566,280.74/781,467.55 = 311,631.93/x
  3. Step 3: Cross multiply
    566,280.74x = 781,467.55 × 311,631.93
  4. Step 4: Simplify right side
    566,280.74x = 243,530,240,059.79
  5. Step 5: Solve for x
    x = 243,530,240,059.79/566,280.74
  6. Step 6: Final answer
    x = 430,052.13

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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.