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Finding the Fourth Proportional to 808,137.76, 1,115,238 and 445,574.56

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Solution

The fourth proportional to 808,137.76, 1,115,238 and 445,574.56 is: 614,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,137.76 : 1,115,238 = 445,574.56 : x
  2. Step 2: Convert to fraction form
    808,137.76/1,115,238 = 445,574.56/x
  3. Step 3: Cross multiply
    808,137.76x = 1,115,238 × 445,574.56
  4. Step 4: Simplify right side
    808,137.76x = 496,921,681,145.28
  5. Step 5: Solve for x
    x = 496,921,681,145.28/808,137.76
  6. Step 6: Final answer
    x = 614,897.24

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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.