Home / 729,406.22-1,006,539.64-407,137.10

Finding the Fourth Proportional to 729,406.22, 1,006,539.64 and 407,137.10

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Solution

The fourth proportional to 729,406.22, 1,006,539.64 and 407,137.10 is: 561,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,406.22 : 1,006,539.64 = 407,137.10 : x
  2. Step 2: Convert to fraction form
    729,406.22/1,006,539.64 = 407,137.10/x
  3. Step 3: Cross multiply
    729,406.22x = 1,006,539.64 × 407,137.10
  4. Step 4: Simplify right side
    729,406.22x = 409,799,624,014.10
  5. Step 5: Solve for x
    x = 409,799,624,014.10/729,406.22
  6. Step 6: Final answer
    x = 561,826.33

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1.5x scale

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.