Home / 668,329.92-1,002,094.50-212,724.36

Finding the Fourth Proportional to 668,329.92, 1,002,094.50 and 212,724.36

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Solution

The fourth proportional to 668,329.92, 1,002,094.50 and 212,724.36 is: 318,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,329.92 : 1,002,094.50 = 212,724.36 : x
  2. Step 2: Convert to fraction form
    668,329.92/1,002,094.50 = 212,724.36/x
  3. Step 3: Cross multiply
    668,329.92x = 1,002,094.50 × 212,724.36
  4. Step 4: Simplify right side
    668,329.92x = 213,169,911,172.02
  5. Step 5: Solve for x
    x = 213,169,911,172.02/668,329.92
  6. Step 6: Final answer
    x = 318,959.10

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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.