Home / 825,433.59-1,238,235.23-285,688.80

Finding the Fourth Proportional to 825,433.59, 1,238,235.23 and 285,688.80

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Solution

The fourth proportional to 825,433.59, 1,238,235.23 and 285,688.80 is: 428,562.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,433.59 : 1,238,235.23 = 285,688.80 : x
  2. Step 2: Convert to fraction form
    825,433.59/1,238,235.23 = 285,688.80/x
  3. Step 3: Cross multiply
    825,433.59x = 1,238,235.23 × 285,688.80
  4. Step 4: Simplify right side
    825,433.59x = 353,749,938,643.57
  5. Step 5: Solve for x
    x = 353,749,938,643.57/825,433.59
  6. Step 6: Final answer
    x = 428,562.57

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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.