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Finding the Fourth Proportional to 527,242, 790,699.44 and 190,238.80

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Solution

The fourth proportional to 527,242, 790,699.44 and 190,238.80 is: 285,299.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,242 : 790,699.44 = 190,238.80 : x
  2. Step 2: Convert to fraction form
    527,242/790,699.44 = 190,238.80/x
  3. Step 3: Cross multiply
    527,242x = 790,699.44 × 190,238.80
  4. Step 4: Simplify right side
    527,242x = 150,421,712,626.27
  5. Step 5: Solve for x
    x = 150,421,712,626.27/527,242
  6. Step 6: Final answer
    x = 285,299.18

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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.