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Finding the Fourth Proportional to 625,971.10, 939,940.80 and 360,250.60

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Solution

The fourth proportional to 625,971.10, 939,940.80 and 360,250.60 is: 540,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,971.10 : 939,940.80 = 360,250.60 : x
  2. Step 2: Convert to fraction form
    625,971.10/939,940.80 = 360,250.60/x
  3. Step 3: Cross multiply
    625,971.10x = 939,940.80 × 360,250.60
  4. Step 4: Simplify right side
    625,971.10x = 338,614,237,164.48
  5. Step 5: Solve for x
    x = 338,614,237,164.48/625,971.10
  6. Step 6: Final answer
    x = 540,942.28

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1.5x scale

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.