Home / 1,298,669.40-1,791,639.77-863,297.28

Finding the Fourth Proportional to 1,298,669.40, 1,791,639.77 and 863,297.28

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Solution

The fourth proportional to 1,298,669.40, 1,791,639.77 and 863,297.28 is: 1,191,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,669.40 : 1,791,639.77 = 863,297.28 : x
  2. Step 2: Convert to fraction form
    1,298,669.40/1,791,639.77 = 863,297.28/x
  3. Step 3: Cross multiply
    1,298,669.40x = 1,791,639.77 × 863,297.28
  4. Step 4: Simplify right side
    1,298,669.40x = 1,546,717,735,864.34
  5. Step 5: Solve for x
    x = 1,546,717,735,864.34/1,298,669.40
  6. Step 6: Final answer
    x = 1,191,001.91

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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.