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Finding the Fourth Proportional to 607,720.90, 838,649.94 and 335,787.70

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Solution

The fourth proportional to 607,720.90, 838,649.94 and 335,787.70 is: 463,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,720.90 : 838,649.94 = 335,787.70 : x
  2. Step 2: Convert to fraction form
    607,720.90/838,649.94 = 335,787.70/x
  3. Step 3: Cross multiply
    607,720.90x = 838,649.94 × 335,787.70
  4. Step 4: Simplify right side
    607,720.90x = 281,608,334,457.74
  5. Step 5: Solve for x
    x = 281,608,334,457.74/607,720.90
  6. Step 6: Final answer
    x = 463,384.32

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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.