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Finding the Fourth Proportional to 606,678.90, 910,346.40 and 251,728.80

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Solution

The fourth proportional to 606,678.90, 910,346.40 and 251,728.80 is: 377,729.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,678.90 : 910,346.40 = 251,728.80 : x
  2. Step 2: Convert to fraction form
    606,678.90/910,346.40 = 251,728.80/x
  3. Step 3: Cross multiply
    606,678.90x = 910,346.40 × 251,728.80
  4. Step 4: Simplify right side
    606,678.90x = 229,160,406,856.32
  5. Step 5: Solve for x
    x = 229,160,406,856.32/606,678.90
  6. Step 6: Final answer
    x = 377,729.32

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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.