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Finding the Fourth Proportional to 510,554.57, 704,540.70 and 281,107.08

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Solution

The fourth proportional to 510,554.57, 704,540.70 and 281,107.08 is: 387,914.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,554.57 : 704,540.70 = 281,107.08 : x
  2. Step 2: Convert to fraction form
    510,554.57/704,540.70 = 281,107.08/x
  3. Step 3: Cross multiply
    510,554.57x = 704,540.70 × 281,107.08
  4. Step 4: Simplify right side
    510,554.57x = 198,051,378,918.16
  5. Step 5: Solve for x
    x = 198,051,378,918.16/510,554.57
  6. Step 6: Final answer
    x = 387,914.23

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Double scale
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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.