Home / 817,064.40-1,224,138.60-395,410.80

Finding the Fourth Proportional to 817,064.40, 1,224,138.60 and 395,410.80

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Solution

The fourth proportional to 817,064.40, 1,224,138.60 and 395,410.80 is: 592,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,064.40 : 1,224,138.60 = 395,410.80 : x
  2. Step 2: Convert to fraction form
    817,064.40/1,224,138.60 = 395,410.80/x
  3. Step 3: Cross multiply
    817,064.40x = 1,224,138.60 × 395,410.80
  4. Step 4: Simplify right side
    817,064.40x = 484,037,623,136.88
  5. Step 5: Solve for x
    x = 484,037,623,136.88/817,064.40
  6. Step 6: Final answer
    x = 592,410.61

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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.