Home / 721,298.24-995,373.60-399,026.24

Finding the Fourth Proportional to 721,298.24, 995,373.60 and 399,026.24

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Solution

The fourth proportional to 721,298.24, 995,373.60 and 399,026.24 is: 550,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,298.24 : 995,373.60 = 399,026.24 : x
  2. Step 2: Convert to fraction form
    721,298.24/995,373.60 = 399,026.24/x
  3. Step 3: Cross multiply
    721,298.24x = 995,373.60 × 399,026.24
  4. Step 4: Simplify right side
    721,298.24x = 397,180,185,003.26
  5. Step 5: Solve for x
    x = 397,180,185,003.26/721,298.24
  6. Step 6: Final answer
    x = 550,646.27

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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.