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Finding the Fourth Proportional to 497,040.40, 744,977.40 and 212,730.40

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Solution

The fourth proportional to 497,040.40, 744,977.40 and 212,730.40 is: 318,845.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,040.40 : 744,977.40 = 212,730.40 : x
  2. Step 2: Convert to fraction form
    497,040.40/744,977.40 = 212,730.40/x
  3. Step 3: Cross multiply
    497,040.40x = 744,977.40 × 212,730.40
  4. Step 4: Simplify right side
    497,040.40x = 158,479,340,292.96
  5. Step 5: Solve for x
    x = 158,479,340,292.96/497,040.40
  6. Step 6: Final answer
    x = 318,845.99

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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.