Home / 790,915.96-1,091,458.56-428,331.52

Finding the Fourth Proportional to 790,915.96, 1,091,458.56 and 428,331.52

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Solution

The fourth proportional to 790,915.96, 1,091,458.56 and 428,331.52 is: 591,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,915.96 : 1,091,458.56 = 428,331.52 : x
  2. Step 2: Convert to fraction form
    790,915.96/1,091,458.56 = 428,331.52/x
  3. Step 3: Cross multiply
    790,915.96x = 1,091,458.56 × 428,331.52
  4. Step 4: Simplify right side
    790,915.96x = 467,506,104,021.81
  5. Step 5: Solve for x
    x = 467,506,104,021.81/790,915.96
  6. Step 6: Final answer
    x = 591,094.54

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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.