Home / 657,484.20-985,448.70-278,404.20

Finding the Fourth Proportional to 657,484.20, 985,448.70 and 278,404.20

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Solution

The fourth proportional to 657,484.20, 985,448.70 and 278,404.20 is: 417,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,484.20 : 985,448.70 = 278,404.20 : x
  2. Step 2: Convert to fraction form
    657,484.20/985,448.70 = 278,404.20/x
  3. Step 3: Cross multiply
    657,484.20x = 985,448.70 × 278,404.20
  4. Step 4: Simplify right side
    657,484.20x = 274,353,056,964.54
  5. Step 5: Solve for x
    x = 274,353,056,964.54/657,484.20
  6. Step 6: Final answer
    x = 417,277.03

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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.