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Finding the Fourth Proportional to 618,971.84, 928,725.02 and 334,862.52

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Solution

The fourth proportional to 618,971.84, 928,725.02 and 334,862.52 is: 502,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,971.84 : 928,725.02 = 334,862.52 : x
  2. Step 2: Convert to fraction form
    618,971.84/928,725.02 = 334,862.52/x
  3. Step 3: Cross multiply
    618,971.84x = 928,725.02 × 334,862.52
  4. Step 4: Simplify right side
    618,971.84x = 310,995,200,584.25
  5. Step 5: Solve for x
    x = 310,995,200,584.25/618,971.84
  6. Step 6: Final answer
    x = 502,438.37

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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.