Home / 723,007.80-1,084,511.70-349,759.80

Finding the Fourth Proportional to 723,007.80, 1,084,511.70 and 349,759.80

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Solution

The fourth proportional to 723,007.80, 1,084,511.70 and 349,759.80 is: 524,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,007.80 : 1,084,511.70 = 349,759.80 : x
  2. Step 2: Convert to fraction form
    723,007.80/1,084,511.70 = 349,759.80/x
  3. Step 3: Cross multiply
    723,007.80x = 1,084,511.70 × 349,759.80
  4. Step 4: Simplify right side
    723,007.80x = 379,318,595,289.66
  5. Step 5: Solve for x
    x = 379,318,595,289.66/723,007.80
  6. Step 6: Final answer
    x = 524,639.70

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Double scale
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Similar ratio
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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.