Home / 615,017.10-921,869.55-235,791.30

Finding the Fourth Proportional to 615,017.10, 921,869.55 and 235,791.30

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Solution

The fourth proportional to 615,017.10, 921,869.55 and 235,791.30 is: 353,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,017.10 : 921,869.55 = 235,791.30 : x
  2. Step 2: Convert to fraction form
    615,017.10/921,869.55 = 235,791.30/x
  3. Step 3: Cross multiply
    615,017.10x = 921,869.55 × 235,791.30
  4. Step 4: Simplify right side
    615,017.10x = 217,368,819,624.92
  5. Step 5: Solve for x
    x = 217,368,819,624.92/615,017.10
  6. Step 6: Final answer
    x = 353,435.41

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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.