Home / 1,121,699.01-1,679,866.20-646,945.05

Finding the Fourth Proportional to 1,121,699.01, 1,679,866.20 and 646,945.05

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Solution

The fourth proportional to 1,121,699.01, 1,679,866.20 and 646,945.05 is: 968,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,699.01 : 1,679,866.20 = 646,945.05 : x
  2. Step 2: Convert to fraction form
    1,121,699.01/1,679,866.20 = 646,945.05/x
  3. Step 3: Cross multiply
    1,121,699.01x = 1,679,866.20 × 646,945.05
  4. Step 4: Simplify right side
    1,121,699.01x = 1,086,781,122,752.31
  5. Step 5: Solve for x
    x = 1,086,781,122,752.31/1,121,699.01
  6. Step 6: Final answer
    x = 968,870.54

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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.