Home / 1,286,616.30-1,929,924.45-340,082.70

Finding the Fourth Proportional to 1,286,616.30, 1,929,924.45 and 340,082.70

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Solution

The fourth proportional to 1,286,616.30, 1,929,924.45 and 340,082.70 is: 510,124.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,616.30 : 1,929,924.45 = 340,082.70 : x
  2. Step 2: Convert to fraction form
    1,286,616.30/1,929,924.45 = 340,082.70/x
  3. Step 3: Cross multiply
    1,286,616.30x = 1,929,924.45 × 340,082.70
  4. Step 4: Simplify right side
    1,286,616.30x = 656,333,917,752.02
  5. Step 5: Solve for x
    x = 656,333,917,752.02/1,286,616.30
  6. Step 6: Final answer
    x = 510,124.05

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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.