Home / 918,009.70-1,377,014.55-681,813.70

Finding the Fourth Proportional to 918,009.70, 1,377,014.55 and 681,813.70

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Solution

The fourth proportional to 918,009.70, 1,377,014.55 and 681,813.70 is: 1,022,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,009.70 : 1,377,014.55 = 681,813.70 : x
  2. Step 2: Convert to fraction form
    918,009.70/1,377,014.55 = 681,813.70/x
  3. Step 3: Cross multiply
    918,009.70x = 1,377,014.55 × 681,813.70
  4. Step 4: Simplify right side
    918,009.70x = 938,867,385,289.34
  5. Step 5: Solve for x
    x = 938,867,385,289.34/918,009.70
  6. Step 6: Final answer
    x = 1,022,720.55

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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.