Home / 764,587.80-1,146,225.60-390,610.80

Finding the Fourth Proportional to 764,587.80, 1,146,225.60 and 390,610.80

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Solution

The fourth proportional to 764,587.80, 1,146,225.60 and 390,610.80 is: 585,581.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,587.80 : 1,146,225.60 = 390,610.80 : x
  2. Step 2: Convert to fraction form
    764,587.80/1,146,225.60 = 390,610.80/x
  3. Step 3: Cross multiply
    764,587.80x = 1,146,225.60 × 390,610.80
  4. Step 4: Simplify right side
    764,587.80x = 447,728,098,596.48
  5. Step 5: Solve for x
    x = 447,728,098,596.48/764,587.80
  6. Step 6: Final answer
    x = 585,581.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.