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Finding the Fourth Proportional to 870,015.60, 1,305,285.84 and 586,842.84

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Solution

The fourth proportional to 870,015.60, 1,305,285.84 and 586,842.84 is: 880,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,015.60 : 1,305,285.84 = 586,842.84 : x
  2. Step 2: Convert to fraction form
    870,015.60/1,305,285.84 = 586,842.84/x
  3. Step 3: Cross multiply
    870,015.60x = 1,305,285.84 × 586,842.84
  4. Step 4: Simplify right side
    870,015.60x = 765,997,649,357.39
  5. Step 5: Solve for x
    x = 765,997,649,357.39/870,015.60
  6. Step 6: Final answer
    x = 880,441.28

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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.