Home / 811,688.40-1,217,705.40-250,779.60

Finding the Fourth Proportional to 811,688.40, 1,217,705.40 and 250,779.60

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Solution

The fourth proportional to 811,688.40, 1,217,705.40 and 250,779.60 is: 376,222.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,688.40 : 1,217,705.40 = 250,779.60 : x
  2. Step 2: Convert to fraction form
    811,688.40/1,217,705.40 = 250,779.60/x
  3. Step 3: Cross multiply
    811,688.40x = 1,217,705.40 × 250,779.60
  4. Step 4: Simplify right side
    811,688.40x = 305,375,673,129.84
  5. Step 5: Solve for x
    x = 305,375,673,129.84/811,688.40
  6. Step 6: Final answer
    x = 376,222.79

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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.