Home / 768,203.46-1,060,015.41-428,606.10

Finding the Fourth Proportional to 768,203.46, 1,060,015.41 and 428,606.10

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Solution

The fourth proportional to 768,203.46, 1,060,015.41 and 428,606.10 is: 591,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,203.46 : 1,060,015.41 = 428,606.10 : x
  2. Step 2: Convert to fraction form
    768,203.46/1,060,015.41 = 428,606.10/x
  3. Step 3: Cross multiply
    768,203.46x = 1,060,015.41 × 428,606.10
  4. Step 4: Simplify right side
    768,203.46x = 454,329,070,820.00
  5. Step 5: Solve for x
    x = 454,329,070,820.00/768,203.46
  6. Step 6: Final answer
    x = 591,417.63

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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.