Home / 1,550,239.84-2,139,915.54-905,869.48

Finding the Fourth Proportional to 1,550,239.84, 2,139,915.54 and 905,869.48

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Solution

The fourth proportional to 1,550,239.84, 2,139,915.54 and 905,869.48 is: 1,250,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,239.84 : 2,139,915.54 = 905,869.48 : x
  2. Step 2: Convert to fraction form
    1,550,239.84/2,139,915.54 = 905,869.48/x
  3. Step 3: Cross multiply
    1,550,239.84x = 2,139,915.54 × 905,869.48
  4. Step 4: Simplify right side
    1,550,239.84x = 1,938,484,177,463.72
  5. Step 5: Solve for x
    x = 1,938,484,177,463.72/1,550,239.84
  6. Step 6: Final answer
    x = 1,250,441.47

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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.