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Finding the Fourth Proportional to 606,637.28, 910,063.92 and 207,322.40

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Solution

The fourth proportional to 606,637.28, 910,063.92 and 207,322.40 is: 311,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,637.28 : 910,063.92 = 207,322.40 : x
  2. Step 2: Convert to fraction form
    606,637.28/910,063.92 = 207,322.40/x
  3. Step 3: Cross multiply
    606,637.28x = 910,063.92 × 207,322.40
  4. Step 4: Simplify right side
    606,637.28x = 188,676,636,047.81
  5. Step 5: Solve for x
    x = 188,676,636,047.81/606,637.28
  6. Step 6: Final answer
    x = 311,020.51

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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.