Home / 320,258.27-482,521.93-289,900.01

Finding the Fourth Proportional to 320,258.27, 482,521.93 and 289,900.01

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Solution

The fourth proportional to 320,258.27, 482,521.93 and 289,900.01 is: 436,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,258.27 : 482,521.93 = 289,900.01 : x
  2. Step 2: Convert to fraction form
    320,258.27/482,521.93 = 289,900.01/x
  3. Step 3: Cross multiply
    320,258.27x = 482,521.93 × 289,900.01
  4. Step 4: Simplify right side
    320,258.27x = 139,883,112,813.77
  5. Step 5: Solve for x
    x = 139,883,112,813.77/320,258.27
  6. Step 6: Final answer
    x = 436,782.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.