Home / 1,091,320.80-1,636,981.20-825,600.30

Finding the Fourth Proportional to 1,091,320.80, 1,636,981.20 and 825,600.30

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Solution

The fourth proportional to 1,091,320.80, 1,636,981.20 and 825,600.30 is: 1,238,400.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,320.80 : 1,636,981.20 = 825,600.30 : x
  2. Step 2: Convert to fraction form
    1,091,320.80/1,636,981.20 = 825,600.30/x
  3. Step 3: Cross multiply
    1,091,320.80x = 1,636,981.20 × 825,600.30
  4. Step 4: Simplify right side
    1,091,320.80x = 1,351,492,169,814.36
  5. Step 5: Solve for x
    x = 1,351,492,169,814.36/1,091,320.80
  6. Step 6: Final answer
    x = 1,238,400.45

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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.