Home / 1,554,951.51-2,145,099.39-909,972.39

Finding the Fourth Proportional to 1,554,951.51, 2,145,099.39 and 909,972.39

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Solution

The fourth proportional to 1,554,951.51, 2,145,099.39 and 909,972.39 is: 1,255,332.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554,951.51 : 2,145,099.39 = 909,972.39 : x
  2. Step 2: Convert to fraction form
    1,554,951.51/2,145,099.39 = 909,972.39/x
  3. Step 3: Cross multiply
    1,554,951.51x = 2,145,099.39 × 909,972.39
  4. Step 4: Simplify right side
    1,554,951.51x = 1,951,981,218,705.84
  5. Step 5: Solve for x
    x = 1,951,981,218,705.84/1,554,951.51
  6. Step 6: Final answer
    x = 1,255,332.53

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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.