Home / 1,209,905.12-1,814,719.32-323,510.24

Finding the Fourth Proportional to 1,209,905.12, 1,814,719.32 and 323,510.24

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Solution

The fourth proportional to 1,209,905.12, 1,814,719.32 and 323,510.24 is: 485,228.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,905.12 : 1,814,719.32 = 323,510.24 : x
  2. Step 2: Convert to fraction form
    1,209,905.12/1,814,719.32 = 323,510.24/x
  3. Step 3: Cross multiply
    1,209,905.12x = 1,814,719.32 × 323,510.24
  4. Step 4: Simplify right side
    1,209,905.12x = 587,080,282,745.84
  5. Step 5: Solve for x
    x = 587,080,282,745.84/1,209,905.12
  6. Step 6: Final answer
    x = 485,228.36

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1.5x scale

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.