Home / 828,424.82-1,240,644.21-472,359.38

Finding the Fourth Proportional to 828,424.82, 1,240,644.21 and 472,359.38

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Solution

The fourth proportional to 828,424.82, 1,240,644.21 and 472,359.38 is: 707,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,424.82 : 1,240,644.21 = 472,359.38 : x
  2. Step 2: Convert to fraction form
    828,424.82/1,240,644.21 = 472,359.38/x
  3. Step 3: Cross multiply
    828,424.82x = 1,240,644.21 × 472,359.38
  4. Step 4: Simplify right side
    828,424.82x = 586,029,929,836.19
  5. Step 5: Solve for x
    x = 586,029,929,836.19/828,424.82
  6. Step 6: Final answer
    x = 707,402.67

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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.