Home / 877,046.47-1,315,569.76-212,198.47

Finding the Fourth Proportional to 877,046.47, 1,315,569.76 and 212,198.47

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Solution

The fourth proportional to 877,046.47, 1,315,569.76 and 212,198.47 is: 318,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,046.47 : 1,315,569.76 = 212,198.47 : x
  2. Step 2: Convert to fraction form
    877,046.47/1,315,569.76 = 212,198.47/x
  3. Step 3: Cross multiply
    877,046.47x = 1,315,569.76 × 212,198.47
  4. Step 4: Simplify right side
    877,046.47x = 279,161,889,189.28
  5. Step 5: Solve for x
    x = 279,161,889,189.28/877,046.47
  6. Step 6: Final answer
    x = 318,297.72

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1.5x scale

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.