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Finding the Fourth Proportional to 618,968.84, 928,720.52 and 334,859.52

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Solution

The fourth proportional to 618,968.84, 928,720.52 and 334,859.52 is: 502,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,968.84 : 928,720.52 = 334,859.52 : x
  2. Step 2: Convert to fraction form
    618,968.84/928,720.52 = 334,859.52/x
  3. Step 3: Cross multiply
    618,968.84x = 928,720.52 × 334,859.52
  4. Step 4: Simplify right side
    618,968.84x = 310,990,907,541.35
  5. Step 5: Solve for x
    x = 310,990,907,541.35/618,968.84
  6. Step 6: Final answer
    x = 502,433.87

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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.