Home / 838,528.80-1,257,866.10-269,967.12

Finding the Fourth Proportional to 838,528.80, 1,257,866.10 and 269,967.12

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Solution

The fourth proportional to 838,528.80, 1,257,866.10 and 269,967.12 is: 404,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,528.80 : 1,257,866.10 = 269,967.12 : x
  2. Step 2: Convert to fraction form
    838,528.80/1,257,866.10 = 269,967.12/x
  3. Step 3: Cross multiply
    838,528.80x = 1,257,866.10 × 269,967.12
  4. Step 4: Simplify right side
    838,528.80x = 339,582,488,362.63
  5. Step 5: Solve for x
    x = 339,582,488,362.63/838,528.80
  6. Step 6: Final answer
    x = 404,974.15

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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.