Home / 620,444.48-928,913.88-505,913.36

Finding the Fourth Proportional to 620,444.48, 928,913.88 and 505,913.36

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Solution

The fourth proportional to 620,444.48, 928,913.88 and 505,913.36 is: 757,440.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,444.48 : 928,913.88 = 505,913.36 : x
  2. Step 2: Convert to fraction form
    620,444.48/928,913.88 = 505,913.36/x
  3. Step 3: Cross multiply
    620,444.48x = 928,913.88 × 505,913.36
  4. Step 4: Simplify right side
    620,444.48x = 469,949,942,181.44
  5. Step 5: Solve for x
    x = 469,949,942,181.44/620,444.48
  6. Step 6: Final answer
    x = 757,440.77

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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.