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Finding the Fourth Proportional to 521,244.68, 719,395.02 and 330,275.96

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Solution

The fourth proportional to 521,244.68, 719,395.02 and 330,275.96 is: 455,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,244.68 : 719,395.02 = 330,275.96 : x
  2. Step 2: Convert to fraction form
    521,244.68/719,395.02 = 330,275.96/x
  3. Step 3: Cross multiply
    521,244.68x = 719,395.02 × 330,275.96
  4. Step 4: Simplify right side
    521,244.68x = 237,598,880,849.72
  5. Step 5: Solve for x
    x = 237,598,880,849.72/521,244.68
  6. Step 6: Final answer
    x = 455,829.84

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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.