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Finding the Fourth Proportional to 606,384.90, 909,905.40 and 251,434.80

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Solution

The fourth proportional to 606,384.90, 909,905.40 and 251,434.80 is: 377,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,384.90 : 909,905.40 = 251,434.80 : x
  2. Step 2: Convert to fraction form
    606,384.90/909,905.40 = 251,434.80/x
  3. Step 3: Cross multiply
    606,384.90x = 909,905.40 × 251,434.80
  4. Step 4: Simplify right side
    606,384.90x = 228,781,882,267.92
  5. Step 5: Solve for x
    x = 228,781,882,267.92/606,384.90
  6. Step 6: Final answer
    x = 377,288.22

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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.