Home / 1,119,823.65-1,679,741.55-278,375.40

Finding the Fourth Proportional to 1,119,823.65, 1,679,741.55 and 278,375.40

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Solution

The fourth proportional to 1,119,823.65, 1,679,741.55 and 278,375.40 is: 417,564.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,823.65 : 1,679,741.55 = 278,375.40 : x
  2. Step 2: Convert to fraction form
    1,119,823.65/1,679,741.55 = 278,375.40/x
  3. Step 3: Cross multiply
    1,119,823.65x = 1,679,741.55 × 278,375.40
  4. Step 4: Simplify right side
    1,119,823.65x = 467,598,725,877.87
  5. Step 5: Solve for x
    x = 467,598,725,877.87/1,119,823.65
  6. Step 6: Final answer
    x = 417,564.61

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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.