Home / 1,330,490.40-1,835,555.76-820,307.04

Finding the Fourth Proportional to 1,330,490.40, 1,835,555.76 and 820,307.04

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Solution

The fourth proportional to 1,330,490.40, 1,835,555.76 and 820,307.04 is: 1,131,702.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,490.40 : 1,835,555.76 = 820,307.04 : x
  2. Step 2: Convert to fraction form
    1,330,490.40/1,835,555.76 = 820,307.04/x
  3. Step 3: Cross multiply
    1,330,490.40x = 1,835,555.76 × 820,307.04
  4. Step 4: Simplify right side
    1,330,490.40x = 1,505,719,312,240.55
  5. Step 5: Solve for x
    x = 1,505,719,312,240.55/1,330,490.40
  6. Step 6: Final answer
    x = 1,131,702.50

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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.