Home / 1,265,073.12-1,745,878.32-728,701.92

Finding the Fourth Proportional to 1,265,073.12, 1,745,878.32 and 728,701.92

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Solution

The fourth proportional to 1,265,073.12, 1,745,878.32 and 728,701.92 is: 1,005,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,073.12 : 1,745,878.32 = 728,701.92 : x
  2. Step 2: Convert to fraction form
    1,265,073.12/1,745,878.32 = 728,701.92/x
  3. Step 3: Cross multiply
    1,265,073.12x = 1,745,878.32 × 728,701.92
  4. Step 4: Simplify right side
    1,265,073.12x = 1,272,224,883,870.37
  5. Step 5: Solve for x
    x = 1,272,224,883,870.37/1,265,073.12
  6. Step 6: Final answer
    x = 1,005,653.24

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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.