Home / 741,653.40-1,112,480.10-458,218.20

Finding the Fourth Proportional to 741,653.40, 1,112,480.10 and 458,218.20

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Solution

The fourth proportional to 741,653.40, 1,112,480.10 and 458,218.20 is: 687,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,653.40 : 1,112,480.10 = 458,218.20 : x
  2. Step 2: Convert to fraction form
    741,653.40/1,112,480.10 = 458,218.20/x
  3. Step 3: Cross multiply
    741,653.40x = 1,112,480.10 × 458,218.20
  4. Step 4: Simplify right side
    741,653.40x = 509,758,628,957.82
  5. Step 5: Solve for x
    x = 509,758,628,957.82/741,653.40
  6. Step 6: Final answer
    x = 687,327.30

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Double scale
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Similar ratio
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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.