Home / 855,175.20-1,282,762.80-455,610.30

Finding the Fourth Proportional to 855,175.20, 1,282,762.80 and 455,610.30

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Solution

The fourth proportional to 855,175.20, 1,282,762.80 and 455,610.30 is: 683,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,175.20 : 1,282,762.80 = 455,610.30 : x
  2. Step 2: Convert to fraction form
    855,175.20/1,282,762.80 = 455,610.30/x
  3. Step 3: Cross multiply
    855,175.20x = 1,282,762.80 × 455,610.30
  4. Step 4: Simplify right side
    855,175.20x = 584,439,944,136.84
  5. Step 5: Solve for x
    x = 584,439,944,136.84/855,175.20
  6. Step 6: Final answer
    x = 683,415.45

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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.