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Finding the Fourth Proportional to 390,012, 585,018 and 94,524

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Solution

The fourth proportional to 390,012, 585,018 and 94,524 is: 141,786

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,012 : 585,018 = 94,524 : x
  2. Step 2: Convert to fraction form
    390,012/585,018 = 94,524/x
  3. Step 3: Cross multiply
    390,012x = 585,018 × 94,524
  4. Step 4: Simplify right side
    390,012x = 55,298,241,432
  5. Step 5: Solve for x
    x = 55,298,241,432/390,012
  6. Step 6: Final answer
    x = 141,786

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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.