Home / 455,849.20-684,389.40-266,503.60

Finding the Fourth Proportional to 455,849.20, 684,389.40 and 266,503.60

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Solution

The fourth proportional to 455,849.20, 684,389.40 and 266,503.60 is: 400,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,849.20 : 684,389.40 = 266,503.60 : x
  2. Step 2: Convert to fraction form
    455,849.20/684,389.40 = 266,503.60/x
  3. Step 3: Cross multiply
    455,849.20x = 684,389.40 × 266,503.60
  4. Step 4: Simplify right side
    455,849.20x = 182,392,238,901.84
  5. Step 5: Solve for x
    x = 182,392,238,901.84/455,849.20
  6. Step 6: Final answer
    x = 400,115.30

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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.