Home / 847,090.92-1,271,141.25-307,389.30

Finding the Fourth Proportional to 847,090.92, 1,271,141.25 and 307,389.30

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Solution

The fourth proportional to 847,090.92, 1,271,141.25 and 307,389.30 is: 461,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,090.92 : 1,271,141.25 = 307,389.30 : x
  2. Step 2: Convert to fraction form
    847,090.92/1,271,141.25 = 307,389.30/x
  3. Step 3: Cross multiply
    847,090.92x = 1,271,141.25 × 307,389.30
  4. Step 4: Simplify right side
    847,090.92x = 390,735,215,424.56
  5. Step 5: Solve for x
    x = 390,735,215,424.56/847,090.92
  6. Step 6: Final answer
    x = 461,267.15

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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.