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Finding the Fourth Proportional to 610,596.82, 915,708.66 and 422,267.50

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Solution

The fourth proportional to 610,596.82, 915,708.66 and 422,267.50 is: 633,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,596.82 : 915,708.66 = 422,267.50 : x
  2. Step 2: Convert to fraction form
    610,596.82/915,708.66 = 422,267.50/x
  3. Step 3: Cross multiply
    610,596.82x = 915,708.66 × 422,267.50
  4. Step 4: Simplify right side
    610,596.82x = 386,674,006,586.55
  5. Step 5: Solve for x
    x = 386,674,006,586.55/610,596.82
  6. Step 6: Final answer
    x = 633,272.22

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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.