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Finding the Fourth Proportional to 608,211.54, 913,144.68 and 342,159.30

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Solution

The fourth proportional to 608,211.54, 913,144.68 and 342,159.30 is: 513,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,211.54 : 913,144.68 = 342,159.30 : x
  2. Step 2: Convert to fraction form
    608,211.54/913,144.68 = 342,159.30/x
  3. Step 3: Cross multiply
    608,211.54x = 913,144.68 × 342,159.30
  4. Step 4: Simplify right side
    608,211.54x = 312,440,944,507.52
  5. Step 5: Solve for x
    x = 312,440,944,507.52/608,211.54
  6. Step 6: Final answer
    x = 513,704.40

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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.