Home / 877,834.50-1,316,752.38-212,986.50

Finding the Fourth Proportional to 877,834.50, 1,316,752.38 and 212,986.50

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Solution

The fourth proportional to 877,834.50, 1,316,752.38 and 212,986.50 is: 319,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,834.50 : 1,316,752.38 = 212,986.50 : x
  2. Step 2: Convert to fraction form
    877,834.50/1,316,752.38 = 212,986.50/x
  3. Step 3: Cross multiply
    877,834.50x = 1,316,752.38 × 212,986.50
  4. Step 4: Simplify right side
    877,834.50x = 280,450,480,782.87
  5. Step 5: Solve for x
    x = 280,450,480,782.87/877,834.50
  6. Step 6: Final answer
    x = 319,479.90

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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.