Home / 1,298,050.80-1,791,283.86-788,917.20

Finding the Fourth Proportional to 1,298,050.80, 1,791,283.86 and 788,917.20

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Solution

The fourth proportional to 1,298,050.80, 1,791,283.86 and 788,917.20 is: 1,088,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,050.80 : 1,791,283.86 = 788,917.20 : x
  2. Step 2: Convert to fraction form
    1,298,050.80/1,791,283.86 = 788,917.20/x
  3. Step 3: Cross multiply
    1,298,050.80x = 1,791,283.86 × 788,917.20
  4. Step 4: Simplify right side
    1,298,050.80x = 1,413,174,647,236.39
  5. Step 5: Solve for x
    x = 1,413,174,647,236.39/1,298,050.80
  6. Step 6: Final answer
    x = 1,088,689.79

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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.