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Finding the Fourth Proportional to 851,326.68, 1,174,883.76 and 469,352.88

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Solution

The fourth proportional to 851,326.68, 1,174,883.76 and 469,352.88 is: 647,736.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,326.68 : 1,174,883.76 = 469,352.88 : x
  2. Step 2: Convert to fraction form
    851,326.68/1,174,883.76 = 469,352.88/x
  3. Step 3: Cross multiply
    851,326.68x = 1,174,883.76 × 469,352.88
  4. Step 4: Simplify right side
    851,326.68x = 551,435,076,421.23
  5. Step 5: Solve for x
    x = 551,435,076,421.23/851,326.68
  6. Step 6: Final answer
    x = 647,736.16

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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.