Home / 1,078,586.49-1,488,988.24-670,819.78

Finding the Fourth Proportional to 1,078,586.49, 1,488,988.24 and 670,819.78

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Solution

The fourth proportional to 1,078,586.49, 1,488,988.24 and 670,819.78 is: 926,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,586.49 : 1,488,988.24 = 670,819.78 : x
  2. Step 2: Convert to fraction form
    1,078,586.49/1,488,988.24 = 670,819.78/x
  3. Step 3: Cross multiply
    1,078,586.49x = 1,488,988.24 × 670,819.78
  4. Step 4: Simplify right side
    1,078,586.49x = 998,842,763,579.39
  5. Step 5: Solve for x
    x = 998,842,763,579.39/1,078,586.49
  6. Step 6: Final answer
    x = 926,066.45

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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.