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Finding the Fourth Proportional to 561,511.50, 842,027.49 and 325,017.42

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Solution

The fourth proportional to 561,511.50, 842,027.49 and 325,017.42 is: 487,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,511.50 : 842,027.49 = 325,017.42 : x
  2. Step 2: Convert to fraction form
    561,511.50/842,027.49 = 325,017.42/x
  3. Step 3: Cross multiply
    561,511.50x = 842,027.49 × 325,017.42
  4. Step 4: Simplify right side
    561,511.50x = 273,673,602,368.88
  5. Step 5: Solve for x
    x = 273,673,602,368.88/561,511.50
  6. Step 6: Final answer
    x = 487,387.35

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1.5x scale

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.