Home / 787,707.61-1,181,809.27-281,923.76

Finding the Fourth Proportional to 787,707.61, 1,181,809.27 and 281,923.76

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Solution

The fourth proportional to 787,707.61, 1,181,809.27 and 281,923.76 is: 422,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,707.61 : 1,181,809.27 = 281,923.76 : x
  2. Step 2: Convert to fraction form
    787,707.61/1,181,809.27 = 281,923.76/x
  3. Step 3: Cross multiply
    787,707.61x = 1,181,809.27 × 281,923.76
  4. Step 4: Simplify right side
    787,707.61x = 333,180,112,296.45
  5. Step 5: Solve for x
    x = 333,180,112,296.45/787,707.61
  6. Step 6: Final answer
    x = 422,974.35

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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.