Home / 842,521.76-1,162,396.14-479,688.90

Finding the Fourth Proportional to 842,521.76, 1,162,396.14 and 479,688.90

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Solution

The fourth proportional to 842,521.76, 1,162,396.14 and 479,688.90 is: 661,809.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,521.76 : 1,162,396.14 = 479,688.90 : x
  2. Step 2: Convert to fraction form
    842,521.76/1,162,396.14 = 479,688.90/x
  3. Step 3: Cross multiply
    842,521.76x = 1,162,396.14 × 479,688.90
  4. Step 4: Simplify right side
    842,521.76x = 557,588,525,760.85
  5. Step 5: Solve for x
    x = 557,588,525,760.85/842,521.76
  6. Step 6: Final answer
    x = 661,809.05

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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.