Home / 874,459.47-1,311,564.66-275,405.07

Finding the Fourth Proportional to 874,459.47, 1,311,564.66 and 275,405.07

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Solution

The fourth proportional to 874,459.47, 1,311,564.66 and 275,405.07 is: 413,068.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,459.47 : 1,311,564.66 = 275,405.07 : x
  2. Step 2: Convert to fraction form
    874,459.47/1,311,564.66 = 275,405.07/x
  3. Step 3: Cross multiply
    874,459.47x = 1,311,564.66 × 275,405.07
  4. Step 4: Simplify right side
    874,459.47x = 361,211,556,996.83
  5. Step 5: Solve for x
    x = 361,211,556,996.83/874,459.47
  6. Step 6: Final answer
    x = 413,068.38

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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.