Home / 801,369.93-1,105,890.80-438,816.77

Finding the Fourth Proportional to 801,369.93, 1,105,890.80 and 438,816.77

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Solution

The fourth proportional to 801,369.93, 1,105,890.80 and 438,816.77 is: 605,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,369.93 : 1,105,890.80 = 438,816.77 : x
  2. Step 2: Convert to fraction form
    801,369.93/1,105,890.80 = 438,816.77/x
  3. Step 3: Cross multiply
    801,369.93x = 1,105,890.80 × 438,816.77
  4. Step 4: Simplify right side
    801,369.93x = 485,283,421,105.18
  5. Step 5: Solve for x
    x = 485,283,421,105.18/801,369.93
  6. Step 6: Final answer
    x = 605,567.30

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1.5x scale

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.