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Finding the Fourth Proportional to 615,072.20, 922,608.30 and 608,851.40

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Solution

The fourth proportional to 615,072.20, 922,608.30 and 608,851.40 is: 913,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,072.20 : 922,608.30 = 608,851.40 : x
  2. Step 2: Convert to fraction form
    615,072.20/922,608.30 = 608,851.40/x
  3. Step 3: Cross multiply
    615,072.20x = 922,608.30 × 608,851.40
  4. Step 4: Simplify right side
    615,072.20x = 561,731,355,106.62
  5. Step 5: Solve for x
    x = 561,731,355,106.62/615,072.20
  6. Step 6: Final answer
    x = 913,277.10

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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.