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Finding the Fourth Proportional to 578,334.72, 798,101.81 and 323,685.91

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Solution

The fourth proportional to 578,334.72, 798,101.81 and 323,685.91 is: 446,686.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,334.72 : 798,101.81 = 323,685.91 : x
  2. Step 2: Convert to fraction form
    578,334.72/798,101.81 = 323,685.91/x
  3. Step 3: Cross multiply
    578,334.72x = 798,101.81 × 323,685.91
  4. Step 4: Simplify right side
    578,334.72x = 258,334,306,651.99
  5. Step 5: Solve for x
    x = 258,334,306,651.99/578,334.72
  6. Step 6: Final answer
    x = 446,686.49

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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.