Home / 877,055.34-1,316,107.90-378,419.34

Finding the Fourth Proportional to 877,055.34, 1,316,107.90 and 378,419.34

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Solution

The fourth proportional to 877,055.34, 1,316,107.90 and 378,419.34 is: 567,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,055.34 : 1,316,107.90 = 378,419.34 : x
  2. Step 2: Convert to fraction form
    877,055.34/1,316,107.90 = 378,419.34/x
  3. Step 3: Cross multiply
    877,055.34x = 1,316,107.90 × 378,419.34
  4. Step 4: Simplify right side
    877,055.34x = 498,040,686,166.61
  5. Step 5: Solve for x
    x = 498,040,686,166.61/877,055.34
  6. Step 6: Final answer
    x = 567,855.48

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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.