Home / 916,949.20-1,375,423.80-668,117.20

Finding the Fourth Proportional to 916,949.20, 1,375,423.80 and 668,117.20

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Solution

The fourth proportional to 916,949.20, 1,375,423.80 and 668,117.20 is: 1,002,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,949.20 : 1,375,423.80 = 668,117.20 : x
  2. Step 2: Convert to fraction form
    916,949.20/1,375,423.80 = 668,117.20/x
  3. Step 3: Cross multiply
    916,949.20x = 1,375,423.80 × 668,117.20
  4. Step 4: Simplify right side
    916,949.20x = 918,944,298,069.36
  5. Step 5: Solve for x
    x = 918,944,298,069.36/916,949.20
  6. Step 6: Final answer
    x = 1,002,175.80

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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.