Home / 726,484.01-1,089,715.07-326,842.56

Finding the Fourth Proportional to 726,484.01, 1,089,715.07 and 326,842.56

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Solution

The fourth proportional to 726,484.01, 1,089,715.07 and 326,842.56 is: 490,258.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,484.01 : 1,089,715.07 = 326,842.56 : x
  2. Step 2: Convert to fraction form
    726,484.01/1,089,715.07 = 326,842.56/x
  3. Step 3: Cross multiply
    726,484.01x = 1,089,715.07 × 326,842.56
  4. Step 4: Simplify right side
    726,484.01x = 356,165,263,966.49
  5. Step 5: Solve for x
    x = 356,165,263,966.49/726,484.01
  6. Step 6: Final answer
    x = 490,258.92

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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.