Home / 959,710.86-1,439,418.63-320,025.69

Finding the Fourth Proportional to 959,710.86, 1,439,418.63 and 320,025.69

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Solution

The fourth proportional to 959,710.86, 1,439,418.63 and 320,025.69 is: 479,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,710.86 : 1,439,418.63 = 320,025.69 : x
  2. Step 2: Convert to fraction form
    959,710.86/1,439,418.63 = 320,025.69/x
  3. Step 3: Cross multiply
    959,710.86x = 1,439,418.63 × 320,025.69
  4. Step 4: Simplify right side
    959,710.86x = 460,650,940,264.61
  5. Step 5: Solve for x
    x = 460,650,940,264.61/959,710.86
  6. Step 6: Final answer
    x = 479,989.30

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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.