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Finding the Fourth Proportional to 532,705.39, 735,101.53 and 290,939.83

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Solution

The fourth proportional to 532,705.39, 735,101.53 and 290,939.83 is: 401,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,705.39 : 735,101.53 = 290,939.83 : x
  2. Step 2: Convert to fraction form
    532,705.39/735,101.53 = 290,939.83/x
  3. Step 3: Cross multiply
    532,705.39x = 735,101.53 × 290,939.83
  4. Step 4: Simplify right side
    532,705.39x = 213,870,314,170.94
  5. Step 5: Solve for x
    x = 213,870,314,170.94/532,705.39
  6. Step 6: Final answer
    x = 401,479.54

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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.