Home / 742,559.15-1,113,660.27-342,815.96

Finding the Fourth Proportional to 742,559.15, 1,113,660.27 and 342,815.96

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Solution

The fourth proportional to 742,559.15, 1,113,660.27 and 342,815.96 is: 514,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,559.15 : 1,113,660.27 = 342,815.96 : x
  2. Step 2: Convert to fraction form
    742,559.15/1,113,660.27 = 342,815.96/x
  3. Step 3: Cross multiply
    742,559.15x = 1,113,660.27 × 342,815.96
  4. Step 4: Simplify right side
    742,559.15x = 381,780,509,005.61
  5. Step 5: Solve for x
    x = 381,780,509,005.61/742,559.15
  6. Step 6: Final answer
    x = 514,141.55

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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.