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Finding the Fourth Proportional to 500,477.47, 690,662.30 and 271,034.94

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Solution

The fourth proportional to 500,477.47, 690,662.30 and 271,034.94 is: 374,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,477.47 : 690,662.30 = 271,034.94 : x
  2. Step 2: Convert to fraction form
    500,477.47/690,662.30 = 271,034.94/x
  3. Step 3: Cross multiply
    500,477.47x = 690,662.30 × 271,034.94
  4. Step 4: Simplify right side
    500,477.47x = 187,193,616,275.57
  5. Step 5: Solve for x
    x = 187,193,616,275.57/500,477.47
  6. Step 6: Final answer
    x = 374,030.06

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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.