Home / 1,388,617.20-2,082,925.80-442,083.60

Finding the Fourth Proportional to 1,388,617.20, 2,082,925.80 and 442,083.60

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Solution

The fourth proportional to 1,388,617.20, 2,082,925.80 and 442,083.60 is: 663,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,617.20 : 2,082,925.80 = 442,083.60 : x
  2. Step 2: Convert to fraction form
    1,388,617.20/2,082,925.80 = 442,083.60/x
  3. Step 3: Cross multiply
    1,388,617.20x = 2,082,925.80 × 442,083.60
  4. Step 4: Simplify right side
    1,388,617.20x = 920,827,336,196.88
  5. Step 5: Solve for x
    x = 920,827,336,196.88/1,388,617.20
  6. Step 6: Final answer
    x = 663,125.40

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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.