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Finding the Fourth Proportional to 663,252.49, 915,028.59 and 408,160.81

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Solution

The fourth proportional to 663,252.49, 915,028.59 and 408,160.81 is: 563,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,252.49 : 915,028.59 = 408,160.81 : x
  2. Step 2: Convert to fraction form
    663,252.49/915,028.59 = 408,160.81/x
  3. Step 3: Cross multiply
    663,252.49x = 915,028.59 × 408,160.81
  4. Step 4: Simplify right side
    663,252.49x = 373,478,810,467.56
  5. Step 5: Solve for x
    x = 373,478,810,467.56/663,252.49
  6. Step 6: Final answer
    x = 563,102.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.