Home / 877,521.38-1,316,282.09-212,673.38

Finding the Fourth Proportional to 877,521.38, 1,316,282.09 and 212,673.38

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Solution

The fourth proportional to 877,521.38, 1,316,282.09 and 212,673.38 is: 319,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,521.38 : 1,316,282.09 = 212,673.38 : x
  2. Step 2: Convert to fraction form
    877,521.38/1,316,282.09 = 212,673.38/x
  3. Step 3: Cross multiply
    877,521.38x = 1,316,282.09 × 212,673.38
  4. Step 4: Simplify right side
    877,521.38x = 279,938,153,468.99
  5. Step 5: Solve for x
    x = 279,938,153,468.99/877,521.38
  6. Step 6: Final answer
    x = 319,010.07

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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.