Home / 939,329.46-1,296,277.43-509,613.12

Finding the Fourth Proportional to 939,329.46, 1,296,277.43 and 509,613.12

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Solution

The fourth proportional to 939,329.46, 1,296,277.43 and 509,613.12 is: 703,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,329.46 : 1,296,277.43 = 509,613.12 : x
  2. Step 2: Convert to fraction form
    939,329.46/1,296,277.43 = 509,613.12/x
  3. Step 3: Cross multiply
    939,329.46x = 1,296,277.43 × 509,613.12
  4. Step 4: Simplify right side
    939,329.46x = 660,599,982,939.82
  5. Step 5: Solve for x
    x = 660,599,982,939.82/939,329.46
  6. Step 6: Final answer
    x = 703,267.61

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Double scale
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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.