Home / 1,270,146.18-1,752,803.39-689,369.28

Finding the Fourth Proportional to 1,270,146.18, 1,752,803.39 and 689,369.28

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Solution

The fourth proportional to 1,270,146.18, 1,752,803.39 and 689,369.28 is: 951,330.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,146.18 : 1,752,803.39 = 689,369.28 : x
  2. Step 2: Convert to fraction form
    1,270,146.18/1,752,803.39 = 689,369.28/x
  3. Step 3: Cross multiply
    1,270,146.18x = 1,752,803.39 × 689,369.28
  4. Step 4: Simplify right side
    1,270,146.18x = 1,208,328,802,218.57
  5. Step 5: Solve for x
    x = 1,208,328,802,218.57/1,270,146.18
  6. Step 6: Final answer
    x = 951,330.50

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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.