Home / 949,078.45-1,309,728.36-519,358.66

Finding the Fourth Proportional to 949,078.45, 1,309,728.36 and 519,358.66

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Solution

The fourth proportional to 949,078.45, 1,309,728.36 and 519,358.66 is: 716,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,078.45 : 1,309,728.36 = 519,358.66 : x
  2. Step 2: Convert to fraction form
    949,078.45/1,309,728.36 = 519,358.66/x
  3. Step 3: Cross multiply
    949,078.45x = 1,309,728.36 × 519,358.66
  4. Step 4: Simplify right side
    949,078.45x = 680,218,766,013.60
  5. Step 5: Solve for x
    x = 680,218,766,013.60/949,078.45
  6. Step 6: Final answer
    x = 716,715.00

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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.