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Finding the Fourth Proportional to 1,531,262.48, 2,113,104.86 and 842,928.12

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Solution

The fourth proportional to 1,531,262.48, 2,113,104.86 and 842,928.12 is: 1,163,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,262.48 : 2,113,104.86 = 842,928.12 : x
  2. Step 2: Convert to fraction form
    1,531,262.48/2,113,104.86 = 842,928.12/x
  3. Step 3: Cross multiply
    1,531,262.48x = 2,113,104.86 × 842,928.12
  4. Step 4: Simplify right side
    1,531,262.48x = 1,781,195,507,002.66
  5. Step 5: Solve for x
    x = 1,781,195,507,002.66/1,531,262.48
  6. Step 6: Final answer
    x = 1,163,220.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.