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Finding the Fourth Proportional to 608,214.70, 912,697.25 and 308,910.07

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Solution

The fourth proportional to 608,214.70, 912,697.25 and 308,910.07 is: 463,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,214.70 : 912,697.25 = 308,910.07 : x
  2. Step 2: Convert to fraction form
    608,214.70/912,697.25 = 308,910.07/x
  3. Step 3: Cross multiply
    608,214.70x = 912,697.25 × 308,910.07
  4. Step 4: Simplify right side
    608,214.70x = 281,941,371,386.31
  5. Step 5: Solve for x
    x = 281,941,371,386.31/608,214.70
  6. Step 6: Final answer
    x = 463,555.67

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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.