Home / 1,255,561.80-1,880,232.30-805,590.60

Finding the Fourth Proportional to 1,255,561.80, 1,880,232.30 and 805,590.60

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Solution

The fourth proportional to 1,255,561.80, 1,880,232.30 and 805,590.60 is: 1,206,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,561.80 : 1,880,232.30 = 805,590.60 : x
  2. Step 2: Convert to fraction form
    1,255,561.80/1,880,232.30 = 805,590.60/x
  3. Step 3: Cross multiply
    1,255,561.80x = 1,880,232.30 × 805,590.60
  4. Step 4: Simplify right side
    1,255,561.80x = 1,514,697,466,696.38
  5. Step 5: Solve for x
    x = 1,514,697,466,696.38/1,255,561.80
  6. Step 6: Final answer
    x = 1,206,390.21

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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.