Home / 655,093.07-904,521.18-644,630.25

Finding the Fourth Proportional to 655,093.07, 904,521.18 and 644,630.25

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Solution

The fourth proportional to 655,093.07, 904,521.18 and 644,630.25 is: 890,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,093.07 : 904,521.18 = 644,630.25 : x
  2. Step 2: Convert to fraction form
    655,093.07/904,521.18 = 644,630.25/x
  3. Step 3: Cross multiply
    655,093.07x = 904,521.18 × 644,630.25
  4. Step 4: Simplify right side
    655,093.07x = 583,081,711,489.04
  5. Step 5: Solve for x
    x = 583,081,711,489.04/655,093.07
  6. Step 6: Final answer
    x = 890,074.62

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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.