Home / 1,138,518.02-1,708,057.31-802,215.51

Finding the Fourth Proportional to 1,138,518.02, 1,708,057.31 and 802,215.51

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Solution

The fourth proportional to 1,138,518.02, 1,708,057.31 and 802,215.51 is: 1,203,520.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,518.02 : 1,708,057.31 = 802,215.51 : x
  2. Step 2: Convert to fraction form
    1,138,518.02/1,708,057.31 = 802,215.51/x
  3. Step 3: Cross multiply
    1,138,518.02x = 1,708,057.31 × 802,215.51
  4. Step 4: Simplify right side
    1,138,518.02x = 1,370,230,066,050.88
  5. Step 5: Solve for x
    x = 1,370,230,066,050.88/1,138,518.02
  6. Step 6: Final answer
    x = 1,203,520.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.