Home / 459,956.84-689,941.38-144,413.78

Finding the Fourth Proportional to 459,956.84, 689,941.38 and 144,413.78

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Solution

The fourth proportional to 459,956.84, 689,941.38 and 144,413.78 is: 216,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,956.84 : 689,941.38 = 144,413.78 : x
  2. Step 2: Convert to fraction form
    459,956.84/689,941.38 = 144,413.78/x
  3. Step 3: Cross multiply
    459,956.84x = 689,941.38 × 144,413.78
  4. Step 4: Simplify right side
    459,956.84x = 99,637,042,664.22
  5. Step 5: Solve for x
    x = 99,637,042,664.22/459,956.84
  6. Step 6: Final answer
    x = 216,622.59

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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.