Home / 394,075.60-543,394.24-266,529.76

Finding the Fourth Proportional to 394,075.60, 543,394.24 and 266,529.76

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Solution

The fourth proportional to 394,075.60, 543,394.24 and 266,529.76 is: 367,520.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,075.60 : 543,394.24 = 266,529.76 : x
  2. Step 2: Convert to fraction form
    394,075.60/543,394.24 = 266,529.76/x
  3. Step 3: Cross multiply
    394,075.60x = 543,394.24 × 266,529.76
  4. Step 4: Simplify right side
    394,075.60x = 144,830,736,372.58
  5. Step 5: Solve for x
    x = 144,830,736,372.58/394,075.60
  6. Step 6: Final answer
    x = 367,520.18

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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.