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Finding the Fourth Proportional to 552,081.81, 761,873.00 and 310,364.85

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Solution

The fourth proportional to 552,081.81, 761,873.00 and 310,364.85 is: 428,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,081.81 : 761,873.00 = 310,364.85 : x
  2. Step 2: Convert to fraction form
    552,081.81/761,873.00 = 310,364.85/x
  3. Step 3: Cross multiply
    552,081.81x = 761,873.00 × 310,364.85
  4. Step 4: Simplify right side
    552,081.81x = 236,458,597,812.23
  5. Step 5: Solve for x
    x = 236,458,597,812.23/552,081.81
  6. Step 6: Final answer
    x = 428,303.55

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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.