Home / 877,771.50-1,316,657.79-212,923.50

Finding the Fourth Proportional to 877,771.50, 1,316,657.79 and 212,923.50

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Solution

The fourth proportional to 877,771.50, 1,316,657.79 and 212,923.50 is: 319,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,771.50 : 1,316,657.79 = 212,923.50 : x
  2. Step 2: Convert to fraction form
    877,771.50/1,316,657.79 = 212,923.50/x
  3. Step 3: Cross multiply
    877,771.50x = 1,316,657.79 × 212,923.50
  4. Step 4: Simplify right side
    877,771.50x = 280,347,384,949.07
  5. Step 5: Solve for x
    x = 280,347,384,949.07/877,771.50
  6. Step 6: Final answer
    x = 319,385.38

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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.