Home / 1,486,439.12-2,230,591.80-1,390,794.32

Finding the Fourth Proportional to 1,486,439.12, 2,230,591.80 and 1,390,794.32

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Solution

The fourth proportional to 1,486,439.12, 2,230,591.80 and 1,390,794.32 is: 2,087,064.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,439.12 : 2,230,591.80 = 1,390,794.32 : x
  2. Step 2: Convert to fraction form
    1,486,439.12/2,230,591.80 = 1,390,794.32/x
  3. Step 3: Cross multiply
    1,486,439.12x = 2,230,591.80 × 1,390,794.32
  4. Step 4: Simplify right side
    1,486,439.12x = 3,102,294,405,678.58
  5. Step 5: Solve for x
    x = 3,102,294,405,678.58/1,486,439.12
  6. Step 6: Final answer
    x = 2,087,064.56

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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.