Home / 811,569.92-1,217,117.04-305,766

Finding the Fourth Proportional to 811,569.92, 1,217,117.04 and 305,766

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Solution

The fourth proportional to 811,569.92, 1,217,117.04 and 305,766 is: 458,559.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,569.92 : 1,217,117.04 = 305,766 : x
  2. Step 2: Convert to fraction form
    811,569.92/1,217,117.04 = 305,766/x
  3. Step 3: Cross multiply
    811,569.92x = 1,217,117.04 × 305,766
  4. Step 4: Simplify right side
    811,569.92x = 372,153,008,852.64
  5. Step 5: Solve for x
    x = 372,153,008,852.64/811,569.92
  6. Step 6: Final answer
    x = 458,559.39

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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.