Home / 1,020,605.09-1,531,251.79-451,908.54

Finding the Fourth Proportional to 1,020,605.09, 1,531,251.79 and 451,908.54

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Solution

The fourth proportional to 1,020,605.09, 1,531,251.79 and 451,908.54 is: 678,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,605.09 : 1,531,251.79 = 451,908.54 : x
  2. Step 2: Convert to fraction form
    1,020,605.09/1,531,251.79 = 451,908.54/x
  3. Step 3: Cross multiply
    1,020,605.09x = 1,531,251.79 × 451,908.54
  4. Step 4: Simplify right side
    1,020,605.09x = 691,985,759,661.52
  5. Step 5: Solve for x
    x = 691,985,759,661.52/1,020,605.09
  6. Step 6: Final answer
    x = 678,015.20

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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.