Home / 703,910.31-971,383.55-397,981.41

Finding the Fourth Proportional to 703,910.31, 971,383.55 and 397,981.41

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Solution

The fourth proportional to 703,910.31, 971,383.55 and 397,981.41 is: 549,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,910.31 : 971,383.55 = 397,981.41 : x
  2. Step 2: Convert to fraction form
    703,910.31/971,383.55 = 397,981.41/x
  3. Step 3: Cross multiply
    703,910.31x = 971,383.55 × 397,981.41
  4. Step 4: Simplify right side
    703,910.31x = 386,592,594,879.81
  5. Step 5: Solve for x
    x = 386,592,594,879.81/703,910.31
  6. Step 6: Final answer
    x = 549,207.18

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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.