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Finding the Fourth Proportional to 479,885.86, 720,271.59 and 243,394.62

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Solution

The fourth proportional to 479,885.86, 720,271.59 and 243,394.62 is: 365,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,885.86 : 720,271.59 = 243,394.62 : x
  2. Step 2: Convert to fraction form
    479,885.86/720,271.59 = 243,394.62/x
  3. Step 3: Cross multiply
    479,885.86x = 720,271.59 × 243,394.62
  4. Step 4: Simplify right side
    479,885.86x = 175,310,229,944.85
  5. Step 5: Solve for x
    x = 175,310,229,944.85/479,885.86
  6. Step 6: Final answer
    x = 365,316.51

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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.