Home / 726,491.70-1,089,031.03-347,314.19

Finding the Fourth Proportional to 726,491.70, 1,089,031.03 and 347,314.19

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Solution

The fourth proportional to 726,491.70, 1,089,031.03 and 347,314.19 is: 520,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,491.70 : 1,089,031.03 = 347,314.19 : x
  2. Step 2: Convert to fraction form
    726,491.70/1,089,031.03 = 347,314.19/x
  3. Step 3: Cross multiply
    726,491.70x = 1,089,031.03 × 347,314.19
  4. Step 4: Simplify right side
    726,491.70x = 378,235,931,923.61
  5. Step 5: Solve for x
    x = 378,235,931,923.61/726,491.70
  6. Step 6: Final answer
    x = 520,633.52

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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.