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Finding the Fourth Proportional to 518,588.50, 778,013.95 and 144,611.54

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Solution

The fourth proportional to 518,588.50, 778,013.95 and 144,611.54 is: 216,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,588.50 : 778,013.95 = 144,611.54 : x
  2. Step 2: Convert to fraction form
    518,588.50/778,013.95 = 144,611.54/x
  3. Step 3: Cross multiply
    518,588.50x = 778,013.95 × 144,611.54
  4. Step 4: Simplify right side
    518,588.50x = 112,509,795,450.98
  5. Step 5: Solve for x
    x = 112,509,795,450.98/518,588.50
  6. Step 6: Final answer
    x = 216,953.90

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1.5x scale

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.