Home / 1,270,425.21-1,903,955.78-931,880.70

Finding the Fourth Proportional to 1,270,425.21, 1,903,955.78 and 931,880.70

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Solution

The fourth proportional to 1,270,425.21, 1,903,955.78 and 931,880.70 is: 1,396,587.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,425.21 : 1,903,955.78 = 931,880.70 : x
  2. Step 2: Convert to fraction form
    1,270,425.21/1,903,955.78 = 931,880.70/x
  3. Step 3: Cross multiply
    1,270,425.21x = 1,903,955.78 × 931,880.70
  4. Step 4: Simplify right side
    1,270,425.21x = 1,774,259,642,123.32
  5. Step 5: Solve for x
    x = 1,774,259,642,123.32/1,270,425.21
  6. Step 6: Final answer
    x = 1,396,587.24

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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.