Home / 816,645.82-1,225,217.40-417,566.92

Finding the Fourth Proportional to 816,645.82, 1,225,217.40 and 417,566.92

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Solution

The fourth proportional to 816,645.82, 1,225,217.40 and 417,566.92 is: 626,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,645.82 : 1,225,217.40 = 417,566.92 : x
  2. Step 2: Convert to fraction form
    816,645.82/1,225,217.40 = 417,566.92/x
  3. Step 3: Cross multiply
    816,645.82x = 1,225,217.40 × 417,566.92
  4. Step 4: Simplify right side
    816,645.82x = 511,610,256,048.41
  5. Step 5: Solve for x
    x = 511,610,256,048.41/816,645.82
  6. Step 6: Final answer
    x = 626,477.53

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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.