Home / 781,359.16-1,172,403.36-276,302.64

Finding the Fourth Proportional to 781,359.16, 1,172,403.36 and 276,302.64

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Solution

The fourth proportional to 781,359.16, 1,172,403.36 and 276,302.64 is: 414,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,359.16 : 1,172,403.36 = 276,302.64 : x
  2. Step 2: Convert to fraction form
    781,359.16/1,172,403.36 = 276,302.64/x
  3. Step 3: Cross multiply
    781,359.16x = 1,172,403.36 × 276,302.64
  4. Step 4: Simplify right side
    781,359.16x = 323,938,143,512.87
  5. Step 5: Solve for x
    x = 323,938,143,512.87/781,359.16
  6. Step 6: Final answer
    x = 414,582.90

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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.