Home / 813,012.64-1,219,026.44-363,649.76

Finding the Fourth Proportional to 813,012.64, 1,219,026.44 and 363,649.76

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Solution

The fourth proportional to 813,012.64, 1,219,026.44 and 363,649.76 is: 545,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,012.64 : 1,219,026.44 = 363,649.76 : x
  2. Step 2: Convert to fraction form
    813,012.64/1,219,026.44 = 363,649.76/x
  3. Step 3: Cross multiply
    813,012.64x = 1,219,026.44 × 363,649.76
  4. Step 4: Simplify right side
    813,012.64x = 443,298,672,339.65
  5. Step 5: Solve for x
    x = 443,298,672,339.65/813,012.64
  6. Step 6: Final answer
    x = 545,254.34

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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.