Home / 1,530,489.78-2,112,012.47-832,773.48

Finding the Fourth Proportional to 1,530,489.78, 2,112,012.47 and 832,773.48

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Solution

The fourth proportional to 1,530,489.78, 2,112,012.47 and 832,773.48 is: 1,149,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,489.78 : 2,112,012.47 = 832,773.48 : x
  2. Step 2: Convert to fraction form
    1,530,489.78/2,112,012.47 = 832,773.48/x
  3. Step 3: Cross multiply
    1,530,489.78x = 2,112,012.47 × 832,773.48
  4. Step 4: Simplify right side
    1,530,489.78x = 1,758,827,968,607.18
  5. Step 5: Solve for x
    x = 1,758,827,968,607.18/1,530,489.78
  6. Step 6: Final answer
    x = 1,149,192.89

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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.