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Finding the Fourth Proportional to 609,018.16, 912,193.44 and 308,983.36

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Solution

The fourth proportional to 609,018.16, 912,193.44 and 308,983.36 is: 462,798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,018.16 : 912,193.44 = 308,983.36 : x
  2. Step 2: Convert to fraction form
    609,018.16/912,193.44 = 308,983.36/x
  3. Step 3: Cross multiply
    609,018.16x = 912,193.44 × 308,983.36
  4. Step 4: Simplify right side
    609,018.16x = 281,852,594,061.16
  5. Step 5: Solve for x
    x = 281,852,594,061.16/609,018.16
  6. Step 6: Final answer
    x = 462,798.34

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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.