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Finding the Fourth Proportional to 768,047.74, 1,059,465.18 and 445,716.73

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Solution

The fourth proportional to 768,047.74, 1,059,465.18 and 445,716.73 is: 614,833.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,047.74 : 1,059,465.18 = 445,716.73 : x
  2. Step 2: Convert to fraction form
    768,047.74/1,059,465.18 = 445,716.73/x
  3. Step 3: Cross multiply
    768,047.74x = 1,059,465.18 × 445,716.73
  4. Step 4: Simplify right side
    768,047.74x = 472,221,355,578.46
  5. Step 5: Solve for x
    x = 472,221,355,578.46/768,047.74
  6. Step 6: Final answer
    x = 614,833.34

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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.