Home / 805,336.56-1,206,916.20-355,980.96

Finding the Fourth Proportional to 805,336.56, 1,206,916.20 and 355,980.96

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Solution

The fourth proportional to 805,336.56, 1,206,916.20 and 355,980.96 is: 533,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,336.56 : 1,206,916.20 = 355,980.96 : x
  2. Step 2: Convert to fraction form
    805,336.56/1,206,916.20 = 355,980.96/x
  3. Step 3: Cross multiply
    805,336.56x = 1,206,916.20 × 355,980.96
  4. Step 4: Simplify right side
    805,336.56x = 429,639,187,515.55
  5. Step 5: Solve for x
    x = 429,639,187,515.55/805,336.56
  6. Step 6: Final answer
    x = 533,490.23

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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.