Home / 1,095,116.80-1,641,897.60-420,937.60

Finding the Fourth Proportional to 1,095,116.80, 1,641,897.60 and 420,937.60

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Solution

The fourth proportional to 1,095,116.80, 1,641,897.60 and 420,937.60 is: 631,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,116.80 : 1,641,897.60 = 420,937.60 : x
  2. Step 2: Convert to fraction form
    1,095,116.80/1,641,897.60 = 420,937.60/x
  3. Step 3: Cross multiply
    1,095,116.80x = 1,641,897.60 × 420,937.60
  4. Step 4: Simplify right side
    1,095,116.80x = 691,136,435,189.76
  5. Step 5: Solve for x
    x = 691,136,435,189.76/1,095,116.80
  6. Step 6: Final answer
    x = 631,107.51

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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.