Home / 992,698.12-1,488,446.70-393,738.76

Finding the Fourth Proportional to 992,698.12, 1,488,446.70 and 393,738.76

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Solution

The fourth proportional to 992,698.12, 1,488,446.70 and 393,738.76 is: 590,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,698.12 : 1,488,446.70 = 393,738.76 : x
  2. Step 2: Convert to fraction form
    992,698.12/1,488,446.70 = 393,738.76/x
  3. Step 3: Cross multiply
    992,698.12x = 1,488,446.70 × 393,738.76
  4. Step 4: Simplify right side
    992,698.12x = 586,059,157,984.09
  5. Step 5: Solve for x
    x = 586,059,157,984.09/992,698.12
  6. Step 6: Final answer
    x = 590,369.97

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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.