Home / 709,680.80-1,065,039.60-472,944.80

Finding the Fourth Proportional to 709,680.80, 1,065,039.60 and 472,944.80

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Solution

The fourth proportional to 709,680.80, 1,065,039.60 and 472,944.80 is: 709,762.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,680.80 : 1,065,039.60 = 472,944.80 : x
  2. Step 2: Convert to fraction form
    709,680.80/1,065,039.60 = 472,944.80/x
  3. Step 3: Cross multiply
    709,680.80x = 1,065,039.60 × 472,944.80
  4. Step 4: Simplify right side
    709,680.80x = 503,704,940,614.08
  5. Step 5: Solve for x
    x = 503,704,940,614.08/709,680.80
  6. Step 6: Final answer
    x = 709,762.67

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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.