Home / 1,378,600.70-2,067,965.85-432,002.30

Finding the Fourth Proportional to 1,378,600.70, 2,067,965.85 and 432,002.30

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Solution

The fourth proportional to 1,378,600.70, 2,067,965.85 and 432,002.30 is: 648,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,600.70 : 2,067,965.85 = 432,002.30 : x
  2. Step 2: Convert to fraction form
    1,378,600.70/2,067,965.85 = 432,002.30/x
  3. Step 3: Cross multiply
    1,378,600.70x = 2,067,965.85 × 432,002.30
  4. Step 4: Simplify right side
    1,378,600.70x = 893,366,003,521.46
  5. Step 5: Solve for x
    x = 893,366,003,521.46/1,378,600.70
  6. Step 6: Final answer
    x = 648,023.76

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1.5x scale

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.