Home / 877,778.13-1,316,667.73-212,930.13

Finding the Fourth Proportional to 877,778.13, 1,316,667.73 and 212,930.13

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Solution

The fourth proportional to 877,778.13, 1,316,667.73 and 212,930.13 is: 319,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,778.13 : 1,316,667.73 = 212,930.13 : x
  2. Step 2: Convert to fraction form
    877,778.13/1,316,667.73 = 212,930.13/x
  3. Step 3: Cross multiply
    877,778.13x = 1,316,667.73 × 212,930.13
  4. Step 4: Simplify right side
    877,778.13x = 280,358,230,915.71
  5. Step 5: Solve for x
    x = 280,358,230,915.71/877,778.13
  6. Step 6: Final answer
    x = 319,395.32

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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.