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Finding the Fourth Proportional to 610,653, 842,701.50 and 372,189

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Solution

The fourth proportional to 610,653, 842,701.50 and 372,189 is: 513,621.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,653 : 842,701.50 = 372,189 : x
  2. Step 2: Convert to fraction form
    610,653/842,701.50 = 372,189/x
  3. Step 3: Cross multiply
    610,653x = 842,701.50 × 372,189
  4. Step 4: Simplify right side
    610,653x = 313,644,228,583.50
  5. Step 5: Solve for x
    x = 313,644,228,583.50/610,653
  6. Step 6: Final answer
    x = 513,621.04

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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.