Home / 921,661.12-1,271,600.94-727,455.52

Finding the Fourth Proportional to 921,661.12, 1,271,600.94 and 727,455.52

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Solution

The fourth proportional to 921,661.12, 1,271,600.94 and 727,455.52 is: 1,003,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,661.12 : 1,271,600.94 = 727,455.52 : x
  2. Step 2: Convert to fraction form
    921,661.12/1,271,600.94 = 727,455.52/x
  3. Step 3: Cross multiply
    921,661.12x = 1,271,600.94 × 727,455.52
  4. Step 4: Simplify right side
    921,661.12x = 925,033,123,040.19
  5. Step 5: Solve for x
    x = 925,033,123,040.19/921,661.12
  6. Step 6: Final answer
    x = 1,003,658.61

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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.