Home / 929,453.96-1,393,221.69-390,023.46

Finding the Fourth Proportional to 929,453.96, 1,393,221.69 and 390,023.46

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Solution

The fourth proportional to 929,453.96, 1,393,221.69 and 390,023.46 is: 584,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,453.96 : 1,393,221.69 = 390,023.46 : x
  2. Step 2: Convert to fraction form
    929,453.96/1,393,221.69 = 390,023.46/x
  3. Step 3: Cross multiply
    929,453.96x = 1,393,221.69 × 390,023.46
  4. Step 4: Simplify right side
    929,453.96x = 543,389,144,080.85
  5. Step 5: Solve for x
    x = 543,389,144,080.85/929,453.96
  6. Step 6: Final answer
    x = 584,632.67

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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.