Home / 787,054.61-1,086,051.62-442,884.54

Finding the Fourth Proportional to 787,054.61, 1,086,051.62 and 442,884.54

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Solution

The fourth proportional to 787,054.61, 1,086,051.62 and 442,884.54 is: 611,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,054.61 : 1,086,051.62 = 442,884.54 : x
  2. Step 2: Convert to fraction form
    787,054.61/1,086,051.62 = 442,884.54/x
  3. Step 3: Cross multiply
    787,054.61x = 1,086,051.62 × 442,884.54
  4. Step 4: Simplify right side
    787,054.61x = 480,995,475,851.85
  5. Step 5: Solve for x
    x = 480,995,475,851.85/787,054.61
  6. Step 6: Final answer
    x = 611,133.55

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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.