Home / 740,653.35-1,022,164.56-418,422.60

Finding the Fourth Proportional to 740,653.35, 1,022,164.56 and 418,422.60

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Solution

The fourth proportional to 740,653.35, 1,022,164.56 and 418,422.60 is: 577,458.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,653.35 : 1,022,164.56 = 418,422.60 : x
  2. Step 2: Convert to fraction form
    740,653.35/1,022,164.56 = 418,422.60/x
  3. Step 3: Cross multiply
    740,653.35x = 1,022,164.56 × 418,422.60
  4. Step 4: Simplify right side
    740,653.35x = 427,696,752,823.06
  5. Step 5: Solve for x
    x = 427,696,752,823.06/740,653.35
  6. Step 6: Final answer
    x = 577,458.74

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Double scale
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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.