Home / 677,931.72-1,017,231.30-479,527.08

Finding the Fourth Proportional to 677,931.72, 1,017,231.30 and 479,527.08

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Solution

The fourth proportional to 677,931.72, 1,017,231.30 and 479,527.08 is: 719,526.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,931.72 : 1,017,231.30 = 479,527.08 : x
  2. Step 2: Convert to fraction form
    677,931.72/1,017,231.30 = 479,527.08/x
  3. Step 3: Cross multiply
    677,931.72x = 1,017,231.30 × 479,527.08
  4. Step 4: Simplify right side
    677,931.72x = 487,789,954,973.60
  5. Step 5: Solve for x
    x = 487,789,954,973.60/677,931.72
  6. Step 6: Final answer
    x = 719,526.67

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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.