Home / 877,665.90-1,316,544.42-278,673.96

Finding the Fourth Proportional to 877,665.90, 1,316,544.42 and 278,673.96

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Solution

The fourth proportional to 877,665.90, 1,316,544.42 and 278,673.96 is: 418,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,665.90 : 1,316,544.42 = 278,673.96 : x
  2. Step 2: Convert to fraction form
    877,665.90/1,316,544.42 = 278,673.96/x
  3. Step 3: Cross multiply
    877,665.90x = 1,316,544.42 × 278,673.96
  4. Step 4: Simplify right side
    877,665.90x = 366,886,647,037.30
  5. Step 5: Solve for x
    x = 366,886,647,037.30/877,665.90
  6. Step 6: Final answer
    x = 418,025.41

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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.