Home / 1,313,941.60-1,971,430.80-515,087.20

Finding the Fourth Proportional to 1,313,941.60, 1,971,430.80 and 515,087.20

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Solution

The fourth proportional to 1,313,941.60, 1,971,430.80 and 515,087.20 is: 772,834.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,941.60 : 1,971,430.80 = 515,087.20 : x
  2. Step 2: Convert to fraction form
    1,313,941.60/1,971,430.80 = 515,087.20/x
  3. Step 3: Cross multiply
    1,313,941.60x = 1,971,430.80 × 515,087.20
  4. Step 4: Simplify right side
    1,313,941.60x = 1,015,458,770,765.76
  5. Step 5: Solve for x
    x = 1,015,458,770,765.76/1,313,941.60
  6. Step 6: Final answer
    x = 772,834.02

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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.