Home / 917,612.58-1,375,660.80-404,912.64

Finding the Fourth Proportional to 917,612.58, 1,375,660.80 and 404,912.64

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Solution

The fourth proportional to 917,612.58, 1,375,660.80 and 404,912.64 is: 607,034.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,612.58 : 1,375,660.80 = 404,912.64 : x
  2. Step 2: Convert to fraction form
    917,612.58/1,375,660.80 = 404,912.64/x
  3. Step 3: Cross multiply
    917,612.58x = 1,375,660.80 × 404,912.64
  4. Step 4: Simplify right side
    917,612.58x = 557,022,446,272.51
  5. Step 5: Solve for x
    x = 557,022,446,272.51/917,612.58
  6. Step 6: Final answer
    x = 607,034.45

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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.