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Finding the Fourth Proportional to 608,164.20, 912,902.40 and 342,443.70

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Solution

The fourth proportional to 608,164.20, 912,902.40 and 342,443.70 is: 514,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,164.20 : 912,902.40 = 342,443.70 : x
  2. Step 2: Convert to fraction form
    608,164.20/912,902.40 = 342,443.70/x
  3. Step 3: Cross multiply
    608,164.20x = 912,902.40 × 342,443.70
  4. Step 4: Simplify right side
    608,164.20x = 312,617,675,594.88
  5. Step 5: Solve for x
    x = 312,617,675,594.88/608,164.20
  6. Step 6: Final answer
    x = 514,034.99

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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.