Home / 1,122,212.40-1,683,318.60-323,422.80

Finding the Fourth Proportional to 1,122,212.40, 1,683,318.60 and 323,422.80

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Solution

The fourth proportional to 1,122,212.40, 1,683,318.60 and 323,422.80 is: 485,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,212.40 : 1,683,318.60 = 323,422.80 : x
  2. Step 2: Convert to fraction form
    1,122,212.40/1,683,318.60 = 323,422.80/x
  3. Step 3: Cross multiply
    1,122,212.40x = 1,683,318.60 × 323,422.80
  4. Step 4: Simplify right side
    1,122,212.40x = 544,423,614,904.08
  5. Step 5: Solve for x
    x = 544,423,614,904.08/1,122,212.40
  6. Step 6: Final answer
    x = 485,134.20

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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.