Home / 765,458.36-1,148,186.46-260,071.84

Finding the Fourth Proportional to 765,458.36, 1,148,186.46 and 260,071.84

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Solution

The fourth proportional to 765,458.36, 1,148,186.46 and 260,071.84 is: 390,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,458.36 : 1,148,186.46 = 260,071.84 : x
  2. Step 2: Convert to fraction form
    765,458.36/1,148,186.46 = 260,071.84/x
  3. Step 3: Cross multiply
    765,458.36x = 1,148,186.46 × 260,071.84
  4. Step 4: Simplify right side
    765,458.36x = 298,610,965,315.29
  5. Step 5: Solve for x
    x = 298,610,965,315.29/765,458.36
  6. Step 6: Final answer
    x = 390,107.39

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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.