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Finding the Fourth Proportional to 521,182.36, 780,755.46 and 359,047.81

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Solution

The fourth proportional to 521,182.36, 780,755.46 and 359,047.81 is: 537,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,182.36 : 780,755.46 = 359,047.81 : x
  2. Step 2: Convert to fraction form
    521,182.36/780,755.46 = 359,047.81/x
  3. Step 3: Cross multiply
    521,182.36x = 780,755.46 × 359,047.81
  4. Step 4: Simplify right side
    521,182.36x = 280,328,538,058.54
  5. Step 5: Solve for x
    x = 280,328,538,058.54/521,182.36
  6. Step 6: Final answer
    x = 537,870.35

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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.