Home / 1,022,859.89-1,534,234.59-312,888

Finding the Fourth Proportional to 1,022,859.89, 1,534,234.59 and 312,888

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Solution

The fourth proportional to 1,022,859.89, 1,534,234.59 and 312,888 is: 469,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,859.89 : 1,534,234.59 = 312,888 : x
  2. Step 2: Convert to fraction form
    1,022,859.89/1,534,234.59 = 312,888/x
  3. Step 3: Cross multiply
    1,022,859.89x = 1,534,234.59 × 312,888
  4. Step 4: Simplify right side
    1,022,859.89x = 480,043,592,395.92
  5. Step 5: Solve for x
    x = 480,043,592,395.92/1,022,859.89
  6. Step 6: Final answer
    x = 469,315.10

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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.