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Finding the Fourth Proportional to 842,877.80, 1,264,298.48 and 235,649.96

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Solution

The fourth proportional to 842,877.80, 1,264,298.48 and 235,649.96 is: 353,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,877.80 : 1,264,298.48 = 235,649.96 : x
  2. Step 2: Convert to fraction form
    842,877.80/1,264,298.48 = 235,649.96/x
  3. Step 3: Cross multiply
    842,877.80x = 1,264,298.48 × 235,649.96
  4. Step 4: Simplify right side
    842,877.80x = 297,931,886,240.06
  5. Step 5: Solve for x
    x = 297,931,886,240.06/842,877.80
  6. Step 6: Final answer
    x = 353,469.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.