Home / 939,359.44-1,296,318.36-509,639.46

Finding the Fourth Proportional to 939,359.44, 1,296,318.36 and 509,639.46

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Solution

The fourth proportional to 939,359.44, 1,296,318.36 and 509,639.46 is: 703,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,359.44 : 1,296,318.36 = 509,639.46 : x
  2. Step 2: Convert to fraction form
    939,359.44/1,296,318.36 = 509,639.46/x
  3. Step 3: Cross multiply
    939,359.44x = 1,296,318.36 × 509,639.46
  4. Step 4: Simplify right side
    939,359.44x = 660,654,988,978.49
  5. Step 5: Solve for x
    x = 660,654,988,978.49/939,359.44
  6. Step 6: Final answer
    x = 703,303.72

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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.