Home / 947,340.40-1,420,945.80-307,634.80

Finding the Fourth Proportional to 947,340.40, 1,420,945.80 and 307,634.80

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Solution

The fourth proportional to 947,340.40, 1,420,945.80 and 307,634.80 is: 461,431.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,340.40 : 1,420,945.80 = 307,634.80 : x
  2. Step 2: Convert to fraction form
    947,340.40/1,420,945.80 = 307,634.80/x
  3. Step 3: Cross multiply
    947,340.40x = 1,420,945.80 × 307,634.80
  4. Step 4: Simplify right side
    947,340.40x = 437,132,376,993.84
  5. Step 5: Solve for x
    x = 437,132,376,993.84/947,340.40
  6. Step 6: Final answer
    x = 461,431.16

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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.