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Finding the Fourth Proportional to 607,978.29, 910,705.70 and 354,489.96

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Solution

The fourth proportional to 607,978.29, 910,705.70 and 354,489.96 is: 530,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,978.29 : 910,705.70 = 354,489.96 : x
  2. Step 2: Convert to fraction form
    607,978.29/910,705.70 = 354,489.96/x
  3. Step 3: Cross multiply
    607,978.29x = 910,705.70 × 354,489.96
  4. Step 4: Simplify right side
    607,978.29x = 322,836,025,392.32
  5. Step 5: Solve for x
    x = 322,836,025,392.32/607,978.29
  6. Step 6: Final answer
    x = 530,999.27

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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.