Home / 790,672.21-1,091,123.03-428,088.46

Finding the Fourth Proportional to 790,672.21, 1,091,123.03 and 428,088.46

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Solution

The fourth proportional to 790,672.21, 1,091,123.03 and 428,088.46 is: 590,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,672.21 : 1,091,123.03 = 428,088.46 : x
  2. Step 2: Convert to fraction form
    790,672.21/1,091,123.03 = 428,088.46/x
  3. Step 3: Cross multiply
    790,672.21x = 1,091,123.03 × 428,088.46
  4. Step 4: Simplify right side
    790,672.21x = 467,097,177,583.23
  5. Step 5: Solve for x
    x = 467,097,177,583.23/790,672.21
  6. Step 6: Final answer
    x = 590,759.57

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1.5x scale

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.