Home / 911,318.80-1,365,009.90-490,102.60

Finding the Fourth Proportional to 911,318.80, 1,365,009.90 and 490,102.60

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Solution

The fourth proportional to 911,318.80, 1,365,009.90 and 490,102.60 is: 734,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,318.80 : 1,365,009.90 = 490,102.60 : x
  2. Step 2: Convert to fraction form
    911,318.80/1,365,009.90 = 490,102.60/x
  3. Step 3: Cross multiply
    911,318.80x = 1,365,009.90 × 490,102.60
  4. Step 4: Simplify right side
    911,318.80x = 668,994,901,015.74
  5. Step 5: Solve for x
    x = 668,994,901,015.74/911,318.80
  6. Step 6: Final answer
    x = 734,095.36

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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.