Home / 980,539.96-1,470,430.86-381,420.22

Finding the Fourth Proportional to 980,539.96, 1,470,430.86 and 381,420.22

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Solution

The fourth proportional to 980,539.96, 1,470,430.86 and 381,420.22 is: 571,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,539.96 : 1,470,430.86 = 381,420.22 : x
  2. Step 2: Convert to fraction form
    980,539.96/1,470,430.86 = 381,420.22/x
  3. Step 3: Cross multiply
    980,539.96x = 1,470,430.86 × 381,420.22
  4. Step 4: Simplify right side
    980,539.96x = 560,852,062,115.99
  5. Step 5: Solve for x
    x = 560,852,062,115.99/980,539.96
  6. Step 6: Final answer
    x = 571,982.87

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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.