Home / 742,567.38-1,113,672.66-342,824.10

Finding the Fourth Proportional to 742,567.38, 1,113,672.66 and 342,824.10

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Solution

The fourth proportional to 742,567.38, 1,113,672.66 and 342,824.10 is: 514,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,567.38 : 1,113,672.66 = 342,824.10 : x
  2. Step 2: Convert to fraction form
    742,567.38/1,113,672.66 = 342,824.10/x
  3. Step 3: Cross multiply
    742,567.38x = 1,113,672.66 × 342,824.10
  4. Step 4: Simplify right side
    742,567.38x = 381,793,827,359.11
  5. Step 5: Solve for x
    x = 381,793,827,359.11/742,567.38
  6. Step 6: Final answer
    x = 514,153.78

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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.