Home / 1,015,863.76-1,401,884.54-556,970.77

Finding the Fourth Proportional to 1,015,863.76, 1,401,884.54 and 556,970.77

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Solution

The fourth proportional to 1,015,863.76, 1,401,884.54 and 556,970.77 is: 768,615.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,863.76 : 1,401,884.54 = 556,970.77 : x
  2. Step 2: Convert to fraction form
    1,015,863.76/1,401,884.54 = 556,970.77/x
  3. Step 3: Cross multiply
    1,015,863.76x = 1,401,884.54 × 556,970.77
  4. Step 4: Simplify right side
    1,015,863.76x = 780,808,705,405.33
  5. Step 5: Solve for x
    x = 780,808,705,405.33/1,015,863.76
  6. Step 6: Final answer
    x = 768,615.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.