Home / 742,555.14-1,113,654.26-342,811.96

Finding the Fourth Proportional to 742,555.14, 1,113,654.26 and 342,811.96

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Solution

The fourth proportional to 742,555.14, 1,113,654.26 and 342,811.96 is: 514,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,555.14 : 1,113,654.26 = 342,811.96 : x
  2. Step 2: Convert to fraction form
    742,555.14/1,113,654.26 = 342,811.96/x
  3. Step 3: Cross multiply
    742,555.14x = 1,113,654.26 × 342,811.96
  4. Step 4: Simplify right side
    742,555.14x = 381,773,999,632.95
  5. Step 5: Solve for x
    x = 381,773,999,632.95/742,555.14
  6. Step 6: Final answer
    x = 514,135.56

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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.