Home / 668,326.92-1,002,090.02-212,721.36

Finding the Fourth Proportional to 668,326.92, 1,002,090.02 and 212,721.36

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Solution

The fourth proportional to 668,326.92, 1,002,090.02 and 212,721.36 is: 318,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,326.92 : 1,002,090.02 = 212,721.36 : x
  2. Step 2: Convert to fraction form
    668,326.92/1,002,090.02 = 212,721.36/x
  3. Step 3: Cross multiply
    668,326.92x = 1,002,090.02 × 212,721.36
  4. Step 4: Simplify right side
    668,326.92x = 213,165,947,075.38
  5. Step 5: Solve for x
    x = 213,165,947,075.38/668,326.92
  6. Step 6: Final answer
    x = 318,954.60

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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.