Home / 1,190,419.92-1,642,784.16-646,564.76

Finding the Fourth Proportional to 1,190,419.92, 1,642,784.16 and 646,564.76

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Solution

The fourth proportional to 1,190,419.92, 1,642,784.16 and 646,564.76 is: 892,261.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,419.92 : 1,642,784.16 = 646,564.76 : x
  2. Step 2: Convert to fraction form
    1,190,419.92/1,642,784.16 = 646,564.76/x
  3. Step 3: Cross multiply
    1,190,419.92x = 1,642,784.16 × 646,564.76
  4. Step 4: Simplify right side
    1,190,419.92x = 1,062,166,346,142.20
  5. Step 5: Solve for x
    x = 1,062,166,346,142.20/1,190,419.92
  6. Step 6: Final answer
    x = 892,261.91

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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.