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Finding the Fourth Proportional to 390,014, 585,021 and 94,526

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Solution

The fourth proportional to 390,014, 585,021 and 94,526 is: 141,789

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,014 : 585,021 = 94,526 : x
  2. Step 2: Convert to fraction form
    390,014/585,021 = 94,526/x
  3. Step 3: Cross multiply
    390,014x = 585,021 × 94,526
  4. Step 4: Simplify right side
    390,014x = 55,299,695,046
  5. Step 5: Solve for x
    x = 55,299,695,046/390,014
  6. Step 6: Final answer
    x = 141,789

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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.