Home / 781,837.84-1,172,776.92-213,223.60

Finding the Fourth Proportional to 781,837.84, 1,172,776.92 and 213,223.60

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Solution

The fourth proportional to 781,837.84, 1,172,776.92 and 213,223.60 is: 319,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,837.84 : 1,172,776.92 = 213,223.60 : x
  2. Step 2: Convert to fraction form
    781,837.84/1,172,776.92 = 213,223.60/x
  3. Step 3: Cross multiply
    781,837.84x = 1,172,776.92 × 213,223.60
  4. Step 4: Simplify right side
    781,837.84x = 250,063,716,879.31
  5. Step 5: Solve for x
    x = 250,063,716,879.31/781,837.84
  6. Step 6: Final answer
    x = 319,840.90

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1.5x scale

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.