Home / 851,470.22-1,174,968.81-469,488.86

Finding the Fourth Proportional to 851,470.22, 1,174,968.81 and 469,488.86

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Solution

The fourth proportional to 851,470.22, 1,174,968.81 and 469,488.86 is: 647,861.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,470.22 : 1,174,968.81 = 469,488.86 : x
  2. Step 2: Convert to fraction form
    851,470.22/1,174,968.81 = 469,488.86/x
  3. Step 3: Cross multiply
    851,470.22x = 1,174,968.81 × 469,488.86
  4. Step 4: Simplify right side
    851,470.22x = 551,634,767,142.46
  5. Step 5: Solve for x
    x = 551,634,767,142.46/851,470.22
  6. Step 6: Final answer
    x = 647,861.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.