Home / 819,122.40-1,130,251.86-456,466.77

Finding the Fourth Proportional to 819,122.40, 1,130,251.86 and 456,466.77

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Solution

The fourth proportional to 819,122.40, 1,130,251.86 and 456,466.77 is: 629,847.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,122.40 : 1,130,251.86 = 456,466.77 : x
  2. Step 2: Convert to fraction form
    819,122.40/1,130,251.86 = 456,466.77/x
  3. Step 3: Cross multiply
    819,122.40x = 1,130,251.86 × 456,466.77
  4. Step 4: Simplify right side
    819,122.40x = 515,922,415,820.69
  5. Step 5: Solve for x
    x = 515,922,415,820.69/819,122.40
  6. Step 6: Final answer
    x = 629,847.77

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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.