Home / 939,947.40-1,409,921.10-903,205.80

Finding the Fourth Proportional to 939,947.40, 1,409,921.10 and 903,205.80

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Solution

The fourth proportional to 939,947.40, 1,409,921.10 and 903,205.80 is: 1,354,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,947.40 : 1,409,921.10 = 903,205.80 : x
  2. Step 2: Convert to fraction form
    939,947.40/1,409,921.10 = 903,205.80/x
  3. Step 3: Cross multiply
    939,947.40x = 1,409,921.10 × 903,205.80
  4. Step 4: Simplify right side
    939,947.40x = 1,273,448,915,062.38
  5. Step 5: Solve for x
    x = 1,273,448,915,062.38/939,947.40
  6. Step 6: Final answer
    x = 1,354,808.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.