Home / 817,708.20-1,226,124.90-343,858.20

Finding the Fourth Proportional to 817,708.20, 1,226,124.90 and 343,858.20

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Solution

The fourth proportional to 817,708.20, 1,226,124.90 and 343,858.20 is: 515,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,708.20 : 1,226,124.90 = 343,858.20 : x
  2. Step 2: Convert to fraction form
    817,708.20/1,226,124.90 = 343,858.20/x
  3. Step 3: Cross multiply
    817,708.20x = 1,226,124.90 × 343,858.20
  4. Step 4: Simplify right side
    817,708.20x = 421,613,101,089.18
  5. Step 5: Solve for x
    x = 421,613,101,089.18/817,708.20
  6. Step 6: Final answer
    x = 515,603.37

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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.