Home / 961,821.51-1,443,063.83-429,709.83

Finding the Fourth Proportional to 961,821.51, 1,443,063.83 and 429,709.83

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Solution

The fourth proportional to 961,821.51, 1,443,063.83 and 429,709.83 is: 644,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,821.51 : 1,443,063.83 = 429,709.83 : x
  2. Step 2: Convert to fraction form
    961,821.51/1,443,063.83 = 429,709.83/x
  3. Step 3: Cross multiply
    961,821.51x = 1,443,063.83 × 429,709.83
  4. Step 4: Simplify right side
    961,821.51x = 620,098,710,919.90
  5. Step 5: Solve for x
    x = 620,098,710,919.90/961,821.51
  6. Step 6: Final answer
    x = 644,712.87

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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.