Home / 817,556.70-1,226,772.45-344,289.90

Finding the Fourth Proportional to 817,556.70, 1,226,772.45 and 344,289.90

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Solution

The fourth proportional to 817,556.70, 1,226,772.45 and 344,289.90 is: 516,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,556.70 : 1,226,772.45 = 344,289.90 : x
  2. Step 2: Convert to fraction form
    817,556.70/1,226,772.45 = 344,289.90/x
  3. Step 3: Cross multiply
    817,556.70x = 1,226,772.45 × 344,289.90
  4. Step 4: Simplify right side
    817,556.70x = 422,365,364,133.26
  5. Step 5: Solve for x
    x = 422,365,364,133.26/817,556.70
  6. Step 6: Final answer
    x = 516,619.05

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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.