Home / 1,330,485.65-1,835,549.21-820,302.29

Finding the Fourth Proportional to 1,330,485.65, 1,835,549.21 and 820,302.29

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Solution

The fourth proportional to 1,330,485.65, 1,835,549.21 and 820,302.29 is: 1,131,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,485.65 : 1,835,549.21 = 820,302.29 : x
  2. Step 2: Convert to fraction form
    1,330,485.65/1,835,549.21 = 820,302.29/x
  3. Step 3: Cross multiply
    1,330,485.65x = 1,835,549.21 × 820,302.29
  4. Step 4: Simplify right side
    1,330,485.65x = 1,505,705,216,269.18
  5. Step 5: Solve for x
    x = 1,505,705,216,269.18/1,330,485.65
  6. Step 6: Final answer
    x = 1,131,695.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.