Home / 877,778.25-1,316,667.93-212,930.25

Finding the Fourth Proportional to 877,778.25, 1,316,667.93 and 212,930.25

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Solution

The fourth proportional to 877,778.25, 1,316,667.93 and 212,930.25 is: 319,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,778.25 : 1,316,667.93 = 212,930.25 : x
  2. Step 2: Convert to fraction form
    877,778.25/1,316,667.93 = 212,930.25/x
  3. Step 3: Cross multiply
    877,778.25x = 1,316,667.93 × 212,930.25
  4. Step 4: Simplify right side
    877,778.25x = 280,358,431,501.88
  5. Step 5: Solve for x
    x = 280,358,431,501.88/877,778.25
  6. Step 6: Final answer
    x = 319,395.51

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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.