Home / 742,560.42-1,113,662.12-342,817.22

Finding the Fourth Proportional to 742,560.42, 1,113,662.12 and 342,817.22

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Solution

The fourth proportional to 742,560.42, 1,113,662.12 and 342,817.22 is: 514,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,560.42 : 1,113,662.12 = 342,817.22 : x
  2. Step 2: Convert to fraction form
    742,560.42/1,113,662.12 = 342,817.22/x
  3. Step 3: Cross multiply
    742,560.42x = 1,113,662.12 × 342,817.22
  4. Step 4: Simplify right side
    742,560.42x = 381,782,551,997.71
  5. Step 5: Solve for x
    x = 381,782,551,997.71/742,560.42
  6. Step 6: Final answer
    x = 514,143.42

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Double scale
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1.5x scale

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.