Home / 1,128,020.98-1,557,017.52-725,612.98

Finding the Fourth Proportional to 1,128,020.98, 1,557,017.52 and 725,612.98

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Solution

The fourth proportional to 1,128,020.98, 1,557,017.52 and 725,612.98 is: 1,001,570.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,020.98 : 1,557,017.52 = 725,612.98 : x
  2. Step 2: Convert to fraction form
    1,128,020.98/1,557,017.52 = 725,612.98/x
  3. Step 3: Cross multiply
    1,128,020.98x = 1,557,017.52 × 725,612.98
  4. Step 4: Simplify right side
    1,128,020.98x = 1,129,792,122,599.41
  5. Step 5: Solve for x
    x = 1,129,792,122,599.41/1,128,020.98
  6. Step 6: Final answer
    x = 1,001,570.13

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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.