Home / 877,815.55-1,316,723.32-212,967.55

Finding the Fourth Proportional to 877,815.55, 1,316,723.32 and 212,967.55

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Solution

The fourth proportional to 877,815.55, 1,316,723.32 and 212,967.55 is: 319,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,815.55 : 1,316,723.32 = 212,967.55 : x
  2. Step 2: Convert to fraction form
    877,815.55/1,316,723.32 = 212,967.55/x
  3. Step 3: Cross multiply
    877,815.55x = 1,316,723.32 × 212,967.55
  4. Step 4: Simplify right side
    877,815.55x = 280,419,339,488.27
  5. Step 5: Solve for x
    x = 280,419,339,488.27/877,815.55
  6. Step 6: Final answer
    x = 319,451.32

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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.