Home / 947,999.70-1,421,999.55-629,135.10

Finding the Fourth Proportional to 947,999.70, 1,421,999.55 and 629,135.10

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Solution

The fourth proportional to 947,999.70, 1,421,999.55 and 629,135.10 is: 943,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,999.70 : 1,421,999.55 = 629,135.10 : x
  2. Step 2: Convert to fraction form
    947,999.70/1,421,999.55 = 629,135.10/x
  3. Step 3: Cross multiply
    947,999.70x = 1,421,999.55 × 629,135.10
  4. Step 4: Simplify right side
    947,999.70x = 894,629,829,089.21
  5. Step 5: Solve for x
    x = 894,629,829,089.21/947,999.70
  6. Step 6: Final answer
    x = 943,702.65

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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.