Home / 1,095,123.80-1,641,908.10-420,944.60

Finding the Fourth Proportional to 1,095,123.80, 1,641,908.10 and 420,944.60

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Solution

The fourth proportional to 1,095,123.80, 1,641,908.10 and 420,944.60 is: 631,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,123.80 : 1,641,908.10 = 420,944.60 : x
  2. Step 2: Convert to fraction form
    1,095,123.80/1,641,908.10 = 420,944.60/x
  3. Step 3: Cross multiply
    1,095,123.80x = 1,641,908.10 × 420,944.60
  4. Step 4: Simplify right side
    1,095,123.80x = 691,152,348,391.26
  5. Step 5: Solve for x
    x = 691,152,348,391.26/1,095,123.80
  6. Step 6: Final answer
    x = 631,118.01

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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.