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Finding the Fourth Proportional to 615,161.60, 922,742.40 and 556,112.60

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Solution

The fourth proportional to 615,161.60, 922,742.40 and 556,112.60 is: 834,168.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,161.60 : 922,742.40 = 556,112.60 : x
  2. Step 2: Convert to fraction form
    615,161.60/922,742.40 = 556,112.60/x
  3. Step 3: Cross multiply
    615,161.60x = 922,742.40 × 556,112.60
  4. Step 4: Simplify right side
    615,161.60x = 513,148,675,194.24
  5. Step 5: Solve for x
    x = 513,148,675,194.24/615,161.60
  6. Step 6: Final answer
    x = 834,168.90

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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.