Home / 1,098,860.64-1,516,662-646,409.76

Finding the Fourth Proportional to 1,098,860.64, 1,516,662 and 646,409.76

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Solution

The fourth proportional to 1,098,860.64, 1,516,662 and 646,409.76 is: 892,183.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,860.64 : 1,516,662 = 646,409.76 : x
  2. Step 2: Convert to fraction form
    1,098,860.64/1,516,662 = 646,409.76/x
  3. Step 3: Cross multiply
    1,098,860.64x = 1,516,662 × 646,409.76
  4. Step 4: Simplify right side
    1,098,860.64x = 980,385,119,421.12
  5. Step 5: Solve for x
    x = 980,385,119,421.12/1,098,860.64
  6. Step 6: Final answer
    x = 892,183.31

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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.