Home / 1,120,281.39-1,545,981.25-636,846.56

Finding the Fourth Proportional to 1,120,281.39, 1,545,981.25 and 636,846.56

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Solution

The fourth proportional to 1,120,281.39, 1,545,981.25 and 636,846.56 is: 878,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,281.39 : 1,545,981.25 = 636,846.56 : x
  2. Step 2: Convert to fraction form
    1,120,281.39/1,545,981.25 = 636,846.56/x
  3. Step 3: Cross multiply
    1,120,281.39x = 1,545,981.25 × 636,846.56
  4. Step 4: Simplify right side
    1,120,281.39x = 984,552,840,887.00
  5. Step 5: Solve for x
    x = 984,552,840,887.00/1,120,281.39
  6. Step 6: Final answer
    x = 878,844.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.