Home / 1,265,079.15-1,745,828.91-692,128.89

Finding the Fourth Proportional to 1,265,079.15, 1,745,828.91 and 692,128.89

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Solution

The fourth proportional to 1,265,079.15, 1,745,828.91 and 692,128.89 is: 955,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,079.15 : 1,745,828.91 = 692,128.89 : x
  2. Step 2: Convert to fraction form
    1,265,079.15/1,745,828.91 = 692,128.89/x
  3. Step 3: Cross multiply
    1,265,079.15x = 1,745,828.91 × 692,128.89
  4. Step 4: Simplify right side
    1,265,079.15x = 1,208,338,625,608.21
  5. Step 5: Solve for x
    x = 1,208,338,625,608.21/1,265,079.15
  6. Step 6: Final answer
    x = 955,148.64

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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.