Home / 1,287,579.14-1,931,409.24-613,733.66

Finding the Fourth Proportional to 1,287,579.14, 1,931,409.24 and 613,733.66

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Solution

The fourth proportional to 1,287,579.14, 1,931,409.24 and 613,733.66 is: 920,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,579.14 : 1,931,409.24 = 613,733.66 : x
  2. Step 2: Convert to fraction form
    1,287,579.14/1,931,409.24 = 613,733.66/x
  3. Step 3: Cross multiply
    1,287,579.14x = 1,931,409.24 × 613,733.66
  4. Step 4: Simplify right side
    1,287,579.14x = 1,185,370,861,823.02
  5. Step 5: Solve for x
    x = 1,185,370,861,823.02/1,287,579.14
  6. Step 6: Final answer
    x = 920,619.81

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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.