Home / 870,235.80-1,305,353.70-496,296.60

Finding the Fourth Proportional to 870,235.80, 1,305,353.70 and 496,296.60

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Solution

The fourth proportional to 870,235.80, 1,305,353.70 and 496,296.60 is: 744,444.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,235.80 : 1,305,353.70 = 496,296.60 : x
  2. Step 2: Convert to fraction form
    870,235.80/1,305,353.70 = 496,296.60/x
  3. Step 3: Cross multiply
    870,235.80x = 1,305,353.70 × 496,296.60
  4. Step 4: Simplify right side
    870,235.80x = 647,842,603,107.42
  5. Step 5: Solve for x
    x = 647,842,603,107.42/870,235.80
  6. Step 6: Final answer
    x = 744,444.90

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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.