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Finding the Fourth Proportional to 390,046, 585,069 and 94,558

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Solution

The fourth proportional to 390,046, 585,069 and 94,558 is: 141,837

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,046 : 585,069 = 94,558 : x
  2. Step 2: Convert to fraction form
    390,046/585,069 = 94,558/x
  3. Step 3: Cross multiply
    390,046x = 585,069 × 94,558
  4. Step 4: Simplify right side
    390,046x = 55,322,954,502
  5. Step 5: Solve for x
    x = 55,322,954,502/390,046
  6. Step 6: Final answer
    x = 141,837

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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.