Home / 1,080,005.10-1,620,007.65-654,852.30

Finding the Fourth Proportional to 1,080,005.10, 1,620,007.65 and 654,852.30

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Solution

The fourth proportional to 1,080,005.10, 1,620,007.65 and 654,852.30 is: 982,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,005.10 : 1,620,007.65 = 654,852.30 : x
  2. Step 2: Convert to fraction form
    1,080,005.10/1,620,007.65 = 654,852.30/x
  3. Step 3: Cross multiply
    1,080,005.10x = 1,620,007.65 × 654,852.30
  4. Step 4: Simplify right side
    1,080,005.10x = 1,060,865,735,620.10
  5. Step 5: Solve for x
    x = 1,060,865,735,620.10/1,080,005.10
  6. Step 6: Final answer
    x = 982,278.45

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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.