Home / 877,513.38-1,316,270.06-212,665.38

Finding the Fourth Proportional to 877,513.38, 1,316,270.06 and 212,665.38

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Solution

The fourth proportional to 877,513.38, 1,316,270.06 and 212,665.38 is: 318,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,513.38 : 1,316,270.06 = 212,665.38 : x
  2. Step 2: Convert to fraction form
    877,513.38/1,316,270.06 = 212,665.38/x
  3. Step 3: Cross multiply
    877,513.38x = 1,316,270.06 × 212,665.38
  4. Step 4: Simplify right side
    877,513.38x = 279,925,072,492.52
  5. Step 5: Solve for x
    x = 279,925,072,492.52/877,513.38
  6. Step 6: Final answer
    x = 318,998.07

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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.