Home / 1,236,609.36-1,855,381.20-478,496.43

Finding the Fourth Proportional to 1,236,609.36, 1,855,381.20 and 478,496.43

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Solution

The fourth proportional to 1,236,609.36, 1,855,381.20 and 478,496.43 is: 717,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,609.36 : 1,855,381.20 = 478,496.43 : x
  2. Step 2: Convert to fraction form
    1,236,609.36/1,855,381.20 = 478,496.43/x
  3. Step 3: Cross multiply
    1,236,609.36x = 1,855,381.20 × 478,496.43
  4. Step 4: Simplify right side
    1,236,609.36x = 887,793,280,489.12
  5. Step 5: Solve for x
    x = 887,793,280,489.12/1,236,609.36
  6. Step 6: Final answer
    x = 717,925.41

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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.