Home / 939,825.12-1,296,960-510,105.36

Finding the Fourth Proportional to 939,825.12, 1,296,960 and 510,105.36

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Solution

The fourth proportional to 939,825.12, 1,296,960 and 510,105.36 is: 703,946.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,825.12 : 1,296,960 = 510,105.36 : x
  2. Step 2: Convert to fraction form
    939,825.12/1,296,960 = 510,105.36/x
  3. Step 3: Cross multiply
    939,825.12x = 1,296,960 × 510,105.36
  4. Step 4: Simplify right side
    939,825.12x = 661,586,247,705.60
  5. Step 5: Solve for x
    x = 661,586,247,705.60/939,825.12
  6. Step 6: Final answer
    x = 703,946.12

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1.5x scale

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.