Home / 1,815,205.60-2,722,808.40-870,421.60

Finding the Fourth Proportional to 1,815,205.60, 2,722,808.40 and 870,421.60

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Solution

The fourth proportional to 1,815,205.60, 2,722,808.40 and 870,421.60 is: 1,305,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,205.60 : 2,722,808.40 = 870,421.60 : x
  2. Step 2: Convert to fraction form
    1,815,205.60/2,722,808.40 = 870,421.60/x
  3. Step 3: Cross multiply
    1,815,205.60x = 2,722,808.40 × 870,421.60
  4. Step 4: Simplify right side
    1,815,205.60x = 2,369,991,244,021.44
  5. Step 5: Solve for x
    x = 2,369,991,244,021.44/1,815,205.60
  6. Step 6: Final answer
    x = 1,305,632.40

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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.