Home / 709,036.40-1,063,554.60-485,087.60

Finding the Fourth Proportional to 709,036.40, 1,063,554.60 and 485,087.60

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Solution

The fourth proportional to 709,036.40, 1,063,554.60 and 485,087.60 is: 727,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,036.40 : 1,063,554.60 = 485,087.60 : x
  2. Step 2: Convert to fraction form
    709,036.40/1,063,554.60 = 485,087.60/x
  3. Step 3: Cross multiply
    709,036.40x = 1,063,554.60 × 485,087.60
  4. Step 4: Simplify right side
    709,036.40x = 515,917,148,382.96
  5. Step 5: Solve for x
    x = 515,917,148,382.96/709,036.40
  6. Step 6: Final answer
    x = 727,631.40

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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.