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Finding the Fourth Proportional to 787,075.76, 1,086,159.44 and 447,544

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Solution

The fourth proportional to 787,075.76, 1,086,159.44 and 447,544 is: 617,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,075.76 : 1,086,159.44 = 447,544 : x
  2. Step 2: Convert to fraction form
    787,075.76/1,086,159.44 = 447,544/x
  3. Step 3: Cross multiply
    787,075.76x = 1,086,159.44 × 447,544
  4. Step 4: Simplify right side
    787,075.76x = 486,104,140,415.36
  5. Step 5: Solve for x
    x = 486,104,140,415.36/787,075.76
  6. Step 6: Final answer
    x = 617,607.82

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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.