Home / 1,478,309.90-2,217,464.85-1,328,719.10

Finding the Fourth Proportional to 1,478,309.90, 2,217,464.85 and 1,328,719.10

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Solution

The fourth proportional to 1,478,309.90, 2,217,464.85 and 1,328,719.10 is: 1,993,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,309.90 : 2,217,464.85 = 1,328,719.10 : x
  2. Step 2: Convert to fraction form
    1,478,309.90/2,217,464.85 = 1,328,719.10/x
  3. Step 3: Cross multiply
    1,478,309.90x = 2,217,464.85 × 1,328,719.10
  4. Step 4: Simplify right side
    1,478,309.90x = 2,946,387,899,773.64
  5. Step 5: Solve for x
    x = 2,946,387,899,773.64/1,478,309.90
  6. Step 6: Final answer
    x = 1,993,078.65

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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.