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Finding the Fourth Proportional to 606,426.90, 909,968.40 and 251,476.80

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Solution

The fourth proportional to 606,426.90, 909,968.40 and 251,476.80 is: 377,351.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,426.90 : 909,968.40 = 251,476.80 : x
  2. Step 2: Convert to fraction form
    606,426.90/909,968.40 = 251,476.80/x
  3. Step 3: Cross multiply
    606,426.90x = 909,968.40 × 251,476.80
  4. Step 4: Simplify right side
    606,426.90x = 228,835,941,333.12
  5. Step 5: Solve for x
    x = 228,835,941,333.12/606,426.90
  6. Step 6: Final answer
    x = 377,351.24

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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.