Home / 767,846.28-1,059,650.40-428,307.24

Finding the Fourth Proportional to 767,846.28, 1,059,650.40 and 428,307.24

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Solution

The fourth proportional to 767,846.28, 1,059,650.40 and 428,307.24 is: 591,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,846.28 : 1,059,650.40 = 428,307.24 : x
  2. Step 2: Convert to fraction form
    767,846.28/1,059,650.40 = 428,307.24/x
  3. Step 3: Cross multiply
    767,846.28x = 1,059,650.40 × 428,307.24
  4. Step 4: Simplify right side
    767,846.28x = 453,855,938,188.90
  5. Step 5: Solve for x
    x = 453,855,938,188.90/767,846.28
  6. Step 6: Final answer
    x = 591,076.56

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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.