Home / 1,227,350.64-1,692,871.39-819,246.72

Finding the Fourth Proportional to 1,227,350.64, 1,692,871.39 and 819,246.72

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Solution

The fourth proportional to 1,227,350.64, 1,692,871.39 and 819,246.72 is: 1,129,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,350.64 : 1,692,871.39 = 819,246.72 : x
  2. Step 2: Convert to fraction form
    1,227,350.64/1,692,871.39 = 819,246.72/x
  3. Step 3: Cross multiply
    1,227,350.64x = 1,692,871.39 × 819,246.72
  4. Step 4: Simplify right side
    1,227,350.64x = 1,386,879,333,639.34
  5. Step 5: Solve for x
    x = 1,386,879,333,639.34/1,227,350.64
  6. Step 6: Final answer
    x = 1,129,978.09

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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.