Home / 830,986.92-1,245,254.22-380,596.68

Finding the Fourth Proportional to 830,986.92, 1,245,254.22 and 380,596.68

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Solution

The fourth proportional to 830,986.92, 1,245,254.22 and 380,596.68 is: 570,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,986.92 : 1,245,254.22 = 380,596.68 : x
  2. Step 2: Convert to fraction form
    830,986.92/1,245,254.22 = 380,596.68/x
  3. Step 3: Cross multiply
    830,986.92x = 1,245,254.22 × 380,596.68
  4. Step 4: Simplify right side
    830,986.92x = 473,939,621,887.99
  5. Step 5: Solve for x
    x = 473,939,621,887.99/830,986.92
  6. Step 6: Final answer
    x = 570,333.43

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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.