Home / 1,129,278.78-1,692,423.21-828,350.46

Finding the Fourth Proportional to 1,129,278.78, 1,692,423.21 and 828,350.46

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Solution

The fourth proportional to 1,129,278.78, 1,692,423.21 and 828,350.46 is: 1,241,429.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,278.78 : 1,692,423.21 = 828,350.46 : x
  2. Step 2: Convert to fraction form
    1,129,278.78/1,692,423.21 = 828,350.46/x
  3. Step 3: Cross multiply
    1,129,278.78x = 1,692,423.21 × 828,350.46
  4. Step 4: Simplify right side
    1,129,278.78x = 1,401,919,544,518.18
  5. Step 5: Solve for x
    x = 1,401,919,544,518.18/1,129,278.78
  6. Step 6: Final answer
    x = 1,241,429.10

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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.