Home / 1,105,928.37-1,658,925.36-431,982.45

Finding the Fourth Proportional to 1,105,928.37, 1,658,925.36 and 431,982.45

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Solution

The fourth proportional to 1,105,928.37, 1,658,925.36 and 431,982.45 is: 647,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,928.37 : 1,658,925.36 = 431,982.45 : x
  2. Step 2: Convert to fraction form
    1,105,928.37/1,658,925.36 = 431,982.45/x
  3. Step 3: Cross multiply
    1,105,928.37x = 1,658,925.36 × 431,982.45
  4. Step 4: Simplify right side
    1,105,928.37x = 716,626,641,379.93
  5. Step 5: Solve for x
    x = 716,626,641,379.93/1,105,928.37
  6. Step 6: Final answer
    x = 647,986.49

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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.