Home / 918,500.72-1,377,778.61-759,815.64

Finding the Fourth Proportional to 918,500.72, 1,377,778.61 and 759,815.64

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Solution

The fourth proportional to 918,500.72, 1,377,778.61 and 759,815.64 is: 1,139,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,500.72 : 1,377,778.61 = 759,815.64 : x
  2. Step 2: Convert to fraction form
    918,500.72/1,377,778.61 = 759,815.64/x
  3. Step 3: Cross multiply
    918,500.72x = 1,377,778.61 × 759,815.64
  4. Step 4: Simplify right side
    918,500.72x = 1,046,857,738,235.00
  5. Step 5: Solve for x
    x = 1,046,857,738,235.00/918,500.72
  6. Step 6: Final answer
    x = 1,139,746.24

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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.