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Finding the Fourth Proportional to 384,764.79, 530,699.94 and 270,069.06

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Solution

The fourth proportional to 384,764.79, 530,699.94 and 270,069.06 is: 372,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,764.79 : 530,699.94 = 270,069.06 : x
  2. Step 2: Convert to fraction form
    384,764.79/530,699.94 = 270,069.06/x
  3. Step 3: Cross multiply
    384,764.79x = 530,699.94 × 270,069.06
  4. Step 4: Simplify right side
    384,764.79x = 143,325,633,937.86
  5. Step 5: Solve for x
    x = 143,325,633,937.86/384,764.79
  6. Step 6: Final answer
    x = 372,501.95

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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.