Home / 1,190,842.65-1,643,370.75-646,978.32

Finding the Fourth Proportional to 1,190,842.65, 1,643,370.75 and 646,978.32

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Solution

The fourth proportional to 1,190,842.65, 1,643,370.75 and 646,978.32 is: 892,834.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,842.65 : 1,643,370.75 = 646,978.32 : x
  2. Step 2: Convert to fraction form
    1,190,842.65/1,643,370.75 = 646,978.32/x
  3. Step 3: Cross multiply
    1,190,842.65x = 1,643,370.75 × 646,978.32
  4. Step 4: Simplify right side
    1,190,842.65x = 1,063,225,246,972.14
  5. Step 5: Solve for x
    x = 1,063,225,246,972.14/1,190,842.65
  6. Step 6: Final answer
    x = 892,834.37

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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.