Home / 787,272.06-1,086,583.77-493,058.19

Finding the Fourth Proportional to 787,272.06, 1,086,583.77 and 493,058.19

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Solution

The fourth proportional to 787,272.06, 1,086,583.77 and 493,058.19 is: 680,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,272.06 : 1,086,583.77 = 493,058.19 : x
  2. Step 2: Convert to fraction form
    787,272.06/1,086,583.77 = 493,058.19/x
  3. Step 3: Cross multiply
    787,272.06x = 1,086,583.77 × 493,058.19
  4. Step 4: Simplify right side
    787,272.06x = 535,749,026,919.58
  5. Step 5: Solve for x
    x = 535,749,026,919.58/787,272.06
  6. Step 6: Final answer
    x = 680,513.20

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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.