Home / 1,398,628.14-2,098,291.36-487,823.69

Finding the Fourth Proportional to 1,398,628.14, 2,098,291.36 and 487,823.69

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Solution

The fourth proportional to 1,398,628.14, 2,098,291.36 and 487,823.69 is: 731,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,628.14 : 2,098,291.36 = 487,823.69 : x
  2. Step 2: Convert to fraction form
    1,398,628.14/2,098,291.36 = 487,823.69/x
  3. Step 3: Cross multiply
    1,398,628.14x = 2,098,291.36 × 487,823.69
  4. Step 4: Simplify right side
    1,398,628.14x = 1,023,596,236,736.93
  5. Step 5: Solve for x
    x = 1,023,596,236,736.93/1,398,628.14
  6. Step 6: Final answer
    x = 731,857.32

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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.