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Finding the Fourth Proportional to 518,200.30, 777,300.45 and 367,625.35

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Solution

The fourth proportional to 518,200.30, 777,300.45 and 367,625.35 is: 551,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,200.30 : 777,300.45 = 367,625.35 : x
  2. Step 2: Convert to fraction form
    518,200.30/777,300.45 = 367,625.35/x
  3. Step 3: Cross multiply
    518,200.30x = 777,300.45 × 367,625.35
  4. Step 4: Simplify right side
    518,200.30x = 285,755,349,986.41
  5. Step 5: Solve for x
    x = 285,755,349,986.41/518,200.30
  6. Step 6: Final answer
    x = 551,438.03

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1.5x scale

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.