Home / 1,422,398.78-1,962,809.52-810,532.08

Finding the Fourth Proportional to 1,422,398.78, 1,962,809.52 and 810,532.08

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Solution

The fourth proportional to 1,422,398.78, 1,962,809.52 and 810,532.08 is: 1,118,476.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,398.78 : 1,962,809.52 = 810,532.08 : x
  2. Step 2: Convert to fraction form
    1,422,398.78/1,962,809.52 = 810,532.08/x
  3. Step 3: Cross multiply
    1,422,398.78x = 1,962,809.52 × 810,532.08
  4. Step 4: Simplify right side
    1,422,398.78x = 1,590,920,082,889.40
  5. Step 5: Solve for x
    x = 1,590,920,082,889.40/1,422,398.78
  6. Step 6: Final answer
    x = 1,118,476.83

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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.