Home / 939,359.94-1,296,319.05-509,639.96

Finding the Fourth Proportional to 939,359.94, 1,296,319.05 and 509,639.96

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Solution

The fourth proportional to 939,359.94, 1,296,319.05 and 509,639.96 is: 703,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,359.94 : 1,296,319.05 = 509,639.96 : x
  2. Step 2: Convert to fraction form
    939,359.94/1,296,319.05 = 509,639.96/x
  3. Step 3: Cross multiply
    939,359.94x = 1,296,319.05 × 509,639.96
  4. Step 4: Simplify right side
    939,359.94x = 660,655,982,307.64
  5. Step 5: Solve for x
    x = 660,655,982,307.64/939,359.94
  6. Step 6: Final answer
    x = 703,304.40

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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.