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Finding the Fourth Proportional to 540,268.88, 745,615.95 and 298,598.63

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Solution

The fourth proportional to 540,268.88, 745,615.95 and 298,598.63 is: 412,090.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,268.88 : 745,615.95 = 298,598.63 : x
  2. Step 2: Convert to fraction form
    540,268.88/745,615.95 = 298,598.63/x
  3. Step 3: Cross multiply
    540,268.88x = 745,615.95 × 298,598.63
  4. Step 4: Simplify right side
    540,268.88x = 222,639,901,176.15
  5. Step 5: Solve for x
    x = 222,639,901,176.15/540,268.88
  6. Step 6: Final answer
    x = 412,090.92

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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.