Home / 1,020,143.12-1,407,778.44-697,842.32

Finding the Fourth Proportional to 1,020,143.12, 1,407,778.44 and 697,842.32

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Solution

The fourth proportional to 1,020,143.12, 1,407,778.44 and 697,842.32 is: 963,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,143.12 : 1,407,778.44 = 697,842.32 : x
  2. Step 2: Convert to fraction form
    1,020,143.12/1,407,778.44 = 697,842.32/x
  3. Step 3: Cross multiply
    1,020,143.12x = 1,407,778.44 × 697,842.32
  4. Step 4: Simplify right side
    1,020,143.12x = 982,407,372,615.58
  5. Step 5: Solve for x
    x = 982,407,372,615.58/1,020,143.12
  6. Step 6: Final answer
    x = 963,009.36

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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.