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Finding the Fourth Proportional to 540,103.86, 745,337.72 and 298,370.66

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Solution

The fourth proportional to 540,103.86, 745,337.72 and 298,370.66 is: 411,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,103.86 : 745,337.72 = 298,370.66 : x
  2. Step 2: Convert to fraction form
    540,103.86/745,337.72 = 298,370.66/x
  3. Step 3: Cross multiply
    540,103.86x = 745,337.72 × 298,370.66
  4. Step 4: Simplify right side
    540,103.86x = 222,386,907,439.30
  5. Step 5: Solve for x
    x = 222,386,907,439.30/540,103.86
  6. Step 6: Final answer
    x = 411,748.41

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1.5x scale

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.