Home / 764,592.98-1,055,165.36-420,455.16

Finding the Fourth Proportional to 764,592.98, 1,055,165.36 and 420,455.16

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Solution

The fourth proportional to 764,592.98, 1,055,165.36 and 420,455.16 is: 580,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,592.98 : 1,055,165.36 = 420,455.16 : x
  2. Step 2: Convert to fraction form
    764,592.98/1,055,165.36 = 420,455.16/x
  3. Step 3: Cross multiply
    764,592.98x = 1,055,165.36 × 420,455.16
  4. Step 4: Simplify right side
    764,592.98x = 443,649,718,162.98
  5. Step 5: Solve for x
    x = 443,649,718,162.98/764,592.98
  6. Step 6: Final answer
    x = 580,243.00

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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.