Home / 1,190,345.76-1,641,789.54-776,973.60

Finding the Fourth Proportional to 1,190,345.76, 1,641,789.54 and 776,973.60

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Solution

The fourth proportional to 1,190,345.76, 1,641,789.54 and 776,973.60 is: 1,071,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,345.76 : 1,641,789.54 = 776,973.60 : x
  2. Step 2: Convert to fraction form
    1,190,345.76/1,641,789.54 = 776,973.60/x
  3. Step 3: Cross multiply
    1,190,345.76x = 1,641,789.54 × 776,973.60
  4. Step 4: Simplify right side
    1,190,345.76x = 1,275,627,129,336.14
  5. Step 5: Solve for x
    x = 1,275,627,129,336.14/1,190,345.76
  6. Step 6: Final answer
    x = 1,071,644.20

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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.