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Finding the Fourth Proportional to 521,446.84, 719,596.58 and 282,982.84

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Solution

The fourth proportional to 521,446.84, 719,596.58 and 282,982.84 is: 390,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,446.84 : 719,596.58 = 282,982.84 : x
  2. Step 2: Convert to fraction form
    521,446.84/719,596.58 = 282,982.84/x
  3. Step 3: Cross multiply
    521,446.84x = 719,596.58 × 282,982.84
  4. Step 4: Simplify right side
    521,446.84x = 203,633,483,862.69
  5. Step 5: Solve for x
    x = 203,633,483,862.69/521,446.84
  6. Step 6: Final answer
    x = 390,516.29

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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.