Home / 764,428.30-1,146,638.40-195,808.30

Finding the Fourth Proportional to 764,428.30, 1,146,638.40 and 195,808.30

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Solution

The fourth proportional to 764,428.30, 1,146,638.40 and 195,808.30 is: 293,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,428.30 : 1,146,638.40 = 195,808.30 : x
  2. Step 2: Convert to fraction form
    764,428.30/1,146,638.40 = 195,808.30/x
  3. Step 3: Cross multiply
    764,428.30x = 1,146,638.40 × 195,808.30
  4. Step 4: Simplify right side
    764,428.30x = 224,521,315,818.72
  5. Step 5: Solve for x
    x = 224,521,315,818.72/764,428.30
  6. Step 6: Final answer
    x = 293,711.41

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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.