Home / 785,200.36-1,083,609.06-445,700.20

Finding the Fourth Proportional to 785,200.36, 1,083,609.06 and 445,700.20

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Solution

The fourth proportional to 785,200.36, 1,083,609.06 and 445,700.20 is: 615,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,200.36 : 1,083,609.06 = 445,700.20 : x
  2. Step 2: Convert to fraction form
    785,200.36/1,083,609.06 = 445,700.20/x
  3. Step 3: Cross multiply
    785,200.36x = 1,083,609.06 × 445,700.20
  4. Step 4: Simplify right side
    785,200.36x = 482,964,774,763.81
  5. Step 5: Solve for x
    x = 482,964,774,763.81/785,200.36
  6. Step 6: Final answer
    x = 615,084.76

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.