Home / 890,139.51-1,228,366.94-522,610.52

Finding the Fourth Proportional to 890,139.51, 1,228,366.94 and 522,610.52

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Solution

The fourth proportional to 890,139.51, 1,228,366.94 and 522,610.52 is: 721,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,139.51 : 1,228,366.94 = 522,610.52 : x
  2. Step 2: Convert to fraction form
    890,139.51/1,228,366.94 = 522,610.52/x
  3. Step 3: Cross multiply
    890,139.51x = 1,228,366.94 × 522,610.52
  4. Step 4: Simplify right side
    890,139.51x = 641,957,476,509.32
  5. Step 5: Solve for x
    x = 641,957,476,509.32/890,139.51
  6. Step 6: Final answer
    x = 721,187.49

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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.