Home / 764,465.52-1,054,870.80-420,244.80

Finding the Fourth Proportional to 764,465.52, 1,054,870.80 and 420,244.80

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Solution

The fourth proportional to 764,465.52, 1,054,870.80 and 420,244.80 is: 579,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,465.52 : 1,054,870.80 = 420,244.80 : x
  2. Step 2: Convert to fraction form
    764,465.52/1,054,870.80 = 420,244.80/x
  3. Step 3: Cross multiply
    764,465.52x = 1,054,870.80 × 420,244.80
  4. Step 4: Simplify right side
    764,465.52x = 443,303,968,371.84
  5. Step 5: Solve for x
    x = 443,303,968,371.84/764,465.52
  6. Step 6: Final answer
    x = 579,887.46

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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.