Home / 740,634.39-1,022,158.58-418,365.24

Finding the Fourth Proportional to 740,634.39, 1,022,158.58 and 418,365.24

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Solution

The fourth proportional to 740,634.39, 1,022,158.58 and 418,365.24 is: 577,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,634.39 : 1,022,158.58 = 418,365.24 : x
  2. Step 2: Convert to fraction form
    740,634.39/1,022,158.58 = 418,365.24/x
  3. Step 3: Cross multiply
    740,634.39x = 1,022,158.58 × 418,365.24
  4. Step 4: Simplify right side
    740,634.39x = 427,635,619,639.76
  5. Step 5: Solve for x
    x = 427,635,619,639.76/740,634.39
  6. Step 6: Final answer
    x = 577,390.98

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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.