Home / 926,406.68-1,388,175.24-642,649.10

Finding the Fourth Proportional to 926,406.68, 1,388,175.24 and 642,649.10

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Solution

The fourth proportional to 926,406.68, 1,388,175.24 and 642,649.10 is: 962,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,406.68 : 1,388,175.24 = 642,649.10 : x
  2. Step 2: Convert to fraction form
    926,406.68/1,388,175.24 = 642,649.10/x
  3. Step 3: Cross multiply
    926,406.68x = 1,388,175.24 × 642,649.10
  4. Step 4: Simplify right side
    926,406.68x = 892,109,568,628.28
  5. Step 5: Solve for x
    x = 892,109,568,628.28/926,406.68
  6. Step 6: Final answer
    x = 962,978.34

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1.5x scale

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.