Home / 992,021.20-1,488,492.60-519,240.40

Finding the Fourth Proportional to 992,021.20, 1,488,492.60 and 519,240.40

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Solution

The fourth proportional to 992,021.20, 1,488,492.60 and 519,240.40 is: 779,101.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,021.20 : 1,488,492.60 = 519,240.40 : x
  2. Step 2: Convert to fraction form
    992,021.20/1,488,492.60 = 519,240.40/x
  3. Step 3: Cross multiply
    992,021.20x = 1,488,492.60 × 519,240.40
  4. Step 4: Simplify right side
    992,021.20x = 772,885,493,021.04
  5. Step 5: Solve for x
    x = 772,885,493,021.04/992,021.20
  6. Step 6: Final answer
    x = 779,101.79

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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.