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Finding the Fourth Proportional to 511,472.18, 767,429.58 and 274,538.18

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Solution

The fourth proportional to 511,472.18, 767,429.58 and 274,538.18 is: 411,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,472.18 : 767,429.58 = 274,538.18 : x
  2. Step 2: Convert to fraction form
    511,472.18/767,429.58 = 274,538.18/x
  3. Step 3: Cross multiply
    511,472.18x = 767,429.58 × 274,538.18
  4. Step 4: Simplify right side
    511,472.18x = 210,688,720,171.36
  5. Step 5: Solve for x
    x = 210,688,720,171.36/511,472.18
  6. Step 6: Final answer
    x = 411,926.06

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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.