Home / 810,013.80-1,214,243.10-629,999.40

Finding the Fourth Proportional to 810,013.80, 1,214,243.10 and 629,999.40

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Solution

The fourth proportional to 810,013.80, 1,214,243.10 and 629,999.40 is: 944,394.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,013.80 : 1,214,243.10 = 629,999.40 : x
  2. Step 2: Convert to fraction form
    810,013.80/1,214,243.10 = 629,999.40/x
  3. Step 3: Cross multiply
    810,013.80x = 1,214,243.10 × 629,999.40
  4. Step 4: Simplify right side
    810,013.80x = 764,972,424,454.14
  5. Step 5: Solve for x
    x = 764,972,424,454.14/810,013.80
  6. Step 6: Final answer
    x = 944,394.31

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1.5x scale

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.