Home / 1,378,555.40-2,067,833.85-432,000.20

Finding the Fourth Proportional to 1,378,555.40, 2,067,833.85 and 432,000.20

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Solution

The fourth proportional to 1,378,555.40, 2,067,833.85 and 432,000.20 is: 648,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,555.40 : 2,067,833.85 = 432,000.20 : x
  2. Step 2: Convert to fraction form
    1,378,555.40/2,067,833.85 = 432,000.20/x
  3. Step 3: Cross multiply
    1,378,555.40x = 2,067,833.85 × 432,000.20
  4. Step 4: Simplify right side
    1,378,555.40x = 893,304,636,766.77
  5. Step 5: Solve for x
    x = 893,304,636,766.77/1,378,555.40
  6. Step 6: Final answer
    x = 648,000.54

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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.