Home / 1,442,743.30-1,990,812.63-831,096.10

Finding the Fourth Proportional to 1,442,743.30, 1,990,812.63 and 831,096.10

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Solution

The fourth proportional to 1,442,743.30, 1,990,812.63 and 831,096.10 is: 1,146,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,743.30 : 1,990,812.63 = 831,096.10 : x
  2. Step 2: Convert to fraction form
    1,442,743.30/1,990,812.63 = 831,096.10/x
  3. Step 3: Cross multiply
    1,442,743.30x = 1,990,812.63 × 831,096.10
  4. Step 4: Simplify right side
    1,442,743.30x = 1,654,556,612,623.74
  5. Step 5: Solve for x
    x = 1,654,556,612,623.74/1,442,743.30
  6. Step 6: Final answer
    x = 1,146,812.89

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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.