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Finding the Fourth Proportional to 615,002.88, 922,914.72 and 215,643.36

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Solution

The fourth proportional to 615,002.88, 922,914.72 and 215,643.36 is: 323,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,002.88 : 922,914.72 = 215,643.36 : x
  2. Step 2: Convert to fraction form
    615,002.88/922,914.72 = 215,643.36/x
  3. Step 3: Cross multiply
    615,002.88x = 922,914.72 × 215,643.36
  4. Step 4: Simplify right side
    615,002.88x = 199,020,431,214.26
  5. Step 5: Solve for x
    x = 199,020,431,214.26/615,002.88
  6. Step 6: Final answer
    x = 323,608.94

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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.