Home / 877,537.89-1,316,306.85-212,689.89

Finding the Fourth Proportional to 877,537.89, 1,316,306.85 and 212,689.89

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Solution

The fourth proportional to 877,537.89, 1,316,306.85 and 212,689.89 is: 319,034.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,537.89 : 1,316,306.85 = 212,689.89 : x
  2. Step 2: Convert to fraction form
    877,537.89/1,316,306.85 = 212,689.89/x
  3. Step 3: Cross multiply
    877,537.89x = 1,316,306.85 × 212,689.89
  4. Step 4: Simplify right side
    877,537.89x = 279,965,159,132.75
  5. Step 5: Solve for x
    x = 279,965,159,132.75/877,537.89
  6. Step 6: Final answer
    x = 319,034.84

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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.