Home / 547,749.77-821,547.95-187,914.65

Finding the Fourth Proportional to 547,749.77, 821,547.95 and 187,914.65

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Solution

The fourth proportional to 547,749.77, 821,547.95 and 187,914.65 is: 281,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,749.77 : 821,547.95 = 187,914.65 : x
  2. Step 2: Convert to fraction form
    547,749.77/821,547.95 = 187,914.65/x
  3. Step 3: Cross multiply
    547,749.77x = 821,547.95 × 187,914.65
  4. Step 4: Simplify right side
    547,749.77x = 154,380,890,435.16
  5. Step 5: Solve for x
    x = 154,380,890,435.16/547,749.77
  6. Step 6: Final answer
    x = 281,845.65

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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.