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Finding the Fourth Proportional to 615,269.10, 922,903.65 and 556,220.10

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Solution

The fourth proportional to 615,269.10, 922,903.65 and 556,220.10 is: 834,330.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,269.10 : 922,903.65 = 556,220.10 : x
  2. Step 2: Convert to fraction form
    615,269.10/922,903.65 = 556,220.10/x
  3. Step 3: Cross multiply
    615,269.10x = 922,903.65 × 556,220.10
  4. Step 4: Simplify right side
    615,269.10x = 513,337,560,493.37
  5. Step 5: Solve for x
    x = 513,337,560,493.37/615,269.10
  6. Step 6: Final answer
    x = 834,330.15

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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.