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Finding the Fourth Proportional to 865,954.97, 1,298,808.61 and 297,325.42

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Solution

The fourth proportional to 865,954.97, 1,298,808.61 and 297,325.42 is: 445,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,954.97 : 1,298,808.61 = 297,325.42 : x
  2. Step 2: Convert to fraction form
    865,954.97/1,298,808.61 = 297,325.42/x
  3. Step 3: Cross multiply
    865,954.97x = 1,298,808.61 × 297,325.42
  4. Step 4: Simplify right side
    865,954.97x = 386,168,811,477.53
  5. Step 5: Solve for x
    x = 386,168,811,477.53/865,954.97
  6. Step 6: Final answer
    x = 445,945.60

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1.5x scale

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.