Home / 1,438,995.11-2,158,320.74-1,119,465.90

Finding the Fourth Proportional to 1,438,995.11, 2,158,320.74 and 1,119,465.90

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Solution

The fourth proportional to 1,438,995.11, 2,158,320.74 and 1,119,465.90 is: 1,679,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,995.11 : 2,158,320.74 = 1,119,465.90 : x
  2. Step 2: Convert to fraction form
    1,438,995.11/2,158,320.74 = 1,119,465.90/x
  3. Step 3: Cross multiply
    1,438,995.11x = 2,158,320.74 × 1,119,465.90
  4. Step 4: Simplify right side
    1,438,995.11x = 2,416,166,464,095.44
  5. Step 5: Solve for x
    x = 2,416,166,464,095.44/1,438,995.11
  6. Step 6: Final answer
    x = 1,679,065.10

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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.