Home / 1,237,989.60-1,855,234.80-763,264.80

Finding the Fourth Proportional to 1,237,989.60, 1,855,234.80 and 763,264.80

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Solution

The fourth proportional to 1,237,989.60, 1,855,234.80 and 763,264.80 is: 1,143,818.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,989.60 : 1,855,234.80 = 763,264.80 : x
  2. Step 2: Convert to fraction form
    1,237,989.60/1,855,234.80 = 763,264.80/x
  3. Step 3: Cross multiply
    1,237,989.60x = 1,855,234.80 × 763,264.80
  4. Step 4: Simplify right side
    1,237,989.60x = 1,416,035,418,575.04
  5. Step 5: Solve for x
    x = 1,416,035,418,575.04/1,237,989.60
  6. Step 6: Final answer
    x = 1,143,818.51

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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.