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Finding the Fourth Proportional to 948,296.88, 1,308,672.42 and 540,390

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Solution

The fourth proportional to 948,296.88, 1,308,672.42 and 540,390 is: 745,751.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,296.88 : 1,308,672.42 = 540,390 : x
  2. Step 2: Convert to fraction form
    948,296.88/1,308,672.42 = 540,390/x
  3. Step 3: Cross multiply
    948,296.88x = 1,308,672.42 × 540,390
  4. Step 4: Simplify right side
    948,296.88x = 707,193,489,043.80
  5. Step 5: Solve for x
    x = 707,193,489,043.80/948,296.88
  6. Step 6: Final answer
    x = 745,751.15

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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.