Home / 500,929.30-691,308.93-274,584.34

Finding the Fourth Proportional to 500,929.30, 691,308.93 and 274,584.34

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Solution

The fourth proportional to 500,929.30, 691,308.93 and 274,584.34 is: 378,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,929.30 : 691,308.93 = 274,584.34 : x
  2. Step 2: Convert to fraction form
    500,929.30/691,308.93 = 274,584.34/x
  3. Step 3: Cross multiply
    500,929.30x = 691,308.93 × 274,584.34
  4. Step 4: Simplify right side
    500,929.30x = 189,822,606,280.16
  5. Step 5: Solve for x
    x = 189,822,606,280.16/500,929.30
  6. Step 6: Final answer
    x = 378,940.91

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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.