Home / 1,520,240.22-2,097,931.68-831,912.20

Finding the Fourth Proportional to 1,520,240.22, 2,097,931.68 and 831,912.20

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Solution

The fourth proportional to 1,520,240.22, 2,097,931.68 and 831,912.20 is: 1,148,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,240.22 : 2,097,931.68 = 831,912.20 : x
  2. Step 2: Convert to fraction form
    1,520,240.22/2,097,931.68 = 831,912.20/x
  3. Step 3: Cross multiply
    1,520,240.22x = 2,097,931.68 × 831,912.20
  4. Step 4: Simplify right side
    1,520,240.22x = 1,745,294,959,358.50
  5. Step 5: Solve for x
    x = 1,745,294,959,358.50/1,520,240.22
  6. Step 6: Final answer
    x = 1,148,038.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.