Home / 709,790.04-979,596.18-403,940.80

Finding the Fourth Proportional to 709,790.04, 979,596.18 and 403,940.80

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Solution

The fourth proportional to 709,790.04, 979,596.18 and 403,940.80 is: 557,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,790.04 : 979,596.18 = 403,940.80 : x
  2. Step 2: Convert to fraction form
    709,790.04/979,596.18 = 403,940.80/x
  3. Step 3: Cross multiply
    709,790.04x = 979,596.18 × 403,940.80
  4. Step 4: Simplify right side
    709,790.04x = 395,698,864,626.14
  5. Step 5: Solve for x
    x = 395,698,864,626.14/709,790.04
  6. Step 6: Final answer
    x = 557,487.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.