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Finding the Fourth Proportional to 423,850.98, 584,576.02 and 278,805.72

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Solution

The fourth proportional to 423,850.98, 584,576.02 and 278,805.72 is: 384,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,850.98 : 584,576.02 = 278,805.72 : x
  2. Step 2: Convert to fraction form
    423,850.98/584,576.02 = 278,805.72/x
  3. Step 3: Cross multiply
    423,850.98x = 584,576.02 × 278,805.72
  4. Step 4: Simplify right side
    423,850.98x = 162,983,138,150.83
  5. Step 5: Solve for x
    x = 162,983,138,150.83/423,850.98
  6. Step 6: Final answer
    x = 384,529.34

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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.