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Finding the Fourth Proportional to 687,552, 1,031,742.72 and 293,568

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Solution

The fourth proportional to 687,552, 1,031,742.72 and 293,568 is: 440,529.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,552 : 1,031,742.72 = 293,568 : x
  2. Step 2: Convert to fraction form
    687,552/1,031,742.72 = 293,568/x
  3. Step 3: Cross multiply
    687,552x = 1,031,742.72 × 293,568
  4. Step 4: Simplify right side
    687,552x = 302,886,646,824.96
  5. Step 5: Solve for x
    x = 302,886,646,824.96/687,552
  6. Step 6: Final answer
    x = 440,529.08

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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.