Home / 987,602.09-1,481,392.20-313,665.35

Finding the Fourth Proportional to 987,602.09, 1,481,392.20 and 313,665.35

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Solution

The fourth proportional to 987,602.09, 1,481,392.20 and 313,665.35 is: 470,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,602.09 : 1,481,392.20 = 313,665.35 : x
  2. Step 2: Convert to fraction form
    987,602.09/1,481,392.20 = 313,665.35/x
  3. Step 3: Cross multiply
    987,602.09x = 1,481,392.20 × 313,665.35
  4. Step 4: Simplify right side
    987,602.09x = 464,661,402,900.27
  5. Step 5: Solve for x
    x = 464,661,402,900.27/987,602.09
  6. Step 6: Final answer
    x = 470,494.55

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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.