Home / 1,209,903.20-1,814,854.80-323,439.20

Finding the Fourth Proportional to 1,209,903.20, 1,814,854.80 and 323,439.20

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Solution

The fourth proportional to 1,209,903.20, 1,814,854.80 and 323,439.20 is: 485,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,903.20 : 1,814,854.80 = 323,439.20 : x
  2. Step 2: Convert to fraction form
    1,209,903.20/1,814,854.80 = 323,439.20/x
  3. Step 3: Cross multiply
    1,209,903.20x = 1,814,854.80 × 323,439.20
  4. Step 4: Simplify right side
    1,209,903.20x = 586,995,184,628.16
  5. Step 5: Solve for x
    x = 586,995,184,628.16/1,209,903.20
  6. Step 6: Final answer
    x = 485,158.80

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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.