Home / 1,190,387.67-1,642,746.86-646,528.56

Finding the Fourth Proportional to 1,190,387.67, 1,642,746.86 and 646,528.56

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Solution

The fourth proportional to 1,190,387.67, 1,642,746.86 and 646,528.56 is: 892,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,387.67 : 1,642,746.86 = 646,528.56 : x
  2. Step 2: Convert to fraction form
    1,190,387.67/1,642,746.86 = 646,528.56/x
  3. Step 3: Cross multiply
    1,190,387.67x = 1,642,746.86 × 646,528.56
  4. Step 4: Simplify right side
    1,190,387.67x = 1,062,082,761,840.32
  5. Step 5: Solve for x
    x = 1,062,082,761,840.32/1,190,387.67
  6. Step 6: Final answer
    x = 892,215.86

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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.