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Finding the Fourth Proportional to 606,480.78, 909,830.10 and 207,028.12

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Solution

The fourth proportional to 606,480.78, 909,830.10 and 207,028.12 is: 310,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,480.78 : 909,830.10 = 207,028.12 : x
  2. Step 2: Convert to fraction form
    606,480.78/909,830.10 = 207,028.12/x
  3. Step 3: Cross multiply
    606,480.78x = 909,830.10 × 207,028.12
  4. Step 4: Simplify right side
    606,480.78x = 188,360,415,330.12
  5. Step 5: Solve for x
    x = 188,360,415,330.12/606,480.78
  6. Step 6: Final answer
    x = 310,579.36

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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.