Home / 764,549.04-1,146,961.84-315,019.86

Finding the Fourth Proportional to 764,549.04, 1,146,961.84 and 315,019.86

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Solution

The fourth proportional to 764,549.04, 1,146,961.84 and 315,019.86 is: 472,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,549.04 : 1,146,961.84 = 315,019.86 : x
  2. Step 2: Convert to fraction form
    764,549.04/1,146,961.84 = 315,019.86/x
  3. Step 3: Cross multiply
    764,549.04x = 1,146,961.84 × 315,019.86
  4. Step 4: Simplify right side
    764,549.04x = 361,315,758,262.14
  5. Step 5: Solve for x
    x = 361,315,758,262.14/764,549.04
  6. Step 6: Final answer
    x = 472,586.77

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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.