Home / 1,287,029.81-1,776,101.35-714,068.61

Finding the Fourth Proportional to 1,287,029.81, 1,776,101.35 and 714,068.61

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Solution

The fourth proportional to 1,287,029.81, 1,776,101.35 and 714,068.61 is: 985,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,029.81 : 1,776,101.35 = 714,068.61 : x
  2. Step 2: Convert to fraction form
    1,287,029.81/1,776,101.35 = 714,068.61/x
  3. Step 3: Cross multiply
    1,287,029.81x = 1,776,101.35 × 714,068.61
  4. Step 4: Simplify right side
    1,287,029.81x = 1,268,258,227,105.84
  5. Step 5: Solve for x
    x = 1,268,258,227,105.84/1,287,029.81
  6. Step 6: Final answer
    x = 985,414.81

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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.