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Finding the Fourth Proportional to 709,791.04, 979,597.56 and 403,941.80

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Solution

The fourth proportional to 709,791.04, 979,597.56 and 403,941.80 is: 557,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,791.04 : 979,597.56 = 403,941.80 : x
  2. Step 2: Convert to fraction form
    709,791.04/979,597.56 = 403,941.80/x
  3. Step 3: Cross multiply
    709,791.04x = 979,597.56 × 403,941.80
  4. Step 4: Simplify right side
    709,791.04x = 395,700,401,662.01
  5. Step 5: Solve for x
    x = 395,700,401,662.01/709,791.04
  6. Step 6: Final answer
    x = 557,488.58

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1.5x scale

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.