Home / 649,215.10-973,822.65-639,883.90

Finding the Fourth Proportional to 649,215.10, 973,822.65 and 639,883.90

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Solution

The fourth proportional to 649,215.10, 973,822.65 and 639,883.90 is: 959,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,215.10 : 973,822.65 = 639,883.90 : x
  2. Step 2: Convert to fraction form
    649,215.10/973,822.65 = 639,883.90/x
  3. Step 3: Cross multiply
    649,215.10x = 973,822.65 × 639,883.90
  4. Step 4: Simplify right side
    649,215.10x = 623,133,435,190.34
  5. Step 5: Solve for x
    x = 623,133,435,190.34/649,215.10
  6. Step 6: Final answer
    x = 959,825.85

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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.