Home / 698,763.81-964,288.24-392,841.55

Finding the Fourth Proportional to 698,763.81, 964,288.24 and 392,841.55

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Solution

The fourth proportional to 698,763.81, 964,288.24 and 392,841.55 is: 542,118.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,763.81 : 964,288.24 = 392,841.55 : x
  2. Step 2: Convert to fraction form
    698,763.81/964,288.24 = 392,841.55/x
  3. Step 3: Cross multiply
    698,763.81x = 964,288.24 × 392,841.55
  4. Step 4: Simplify right side
    698,763.81x = 378,812,483,857.24
  5. Step 5: Solve for x
    x = 378,812,483,857.24/698,763.81
  6. Step 6: Final answer
    x = 542,118.06

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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.