Home / 884,829.78-1,221,066.30-482,421.78

Finding the Fourth Proportional to 884,829.78, 1,221,066.30 and 482,421.78

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Solution

The fourth proportional to 884,829.78, 1,221,066.30 and 482,421.78 is: 665,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,829.78 : 1,221,066.30 = 482,421.78 : x
  2. Step 2: Convert to fraction form
    884,829.78/1,221,066.30 = 482,421.78/x
  3. Step 3: Cross multiply
    884,829.78x = 1,221,066.30 × 482,421.78
  4. Step 4: Simplify right side
    884,829.78x = 589,068,977,944.01
  5. Step 5: Solve for x
    x = 589,068,977,944.01/884,829.78
  6. Step 6: Final answer
    x = 665,742.71

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1.5x scale

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.