Home / 1,369,172.93-1,888,830.02-885,895.61

Finding the Fourth Proportional to 1,369,172.93, 1,888,830.02 and 885,895.61

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Solution

The fourth proportional to 1,369,172.93, 1,888,830.02 and 885,895.61 is: 1,222,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,172.93 : 1,888,830.02 = 885,895.61 : x
  2. Step 2: Convert to fraction form
    1,369,172.93/1,888,830.02 = 885,895.61/x
  3. Step 3: Cross multiply
    1,369,172.93x = 1,888,830.02 × 885,895.61
  4. Step 4: Simplify right side
    1,369,172.93x = 1,673,306,215,524.80
  5. Step 5: Solve for x
    x = 1,673,306,215,524.80/1,369,172.93
  6. Step 6: Final answer
    x = 1,222,129.20

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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.