Home / 877,976.78-1,316,359.98-345,558.94

Finding the Fourth Proportional to 877,976.78, 1,316,359.98 and 345,558.94

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Solution

The fourth proportional to 877,976.78, 1,316,359.98 and 345,558.94 is: 518,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,976.78 : 1,316,359.98 = 345,558.94 : x
  2. Step 2: Convert to fraction form
    877,976.78/1,316,359.98 = 345,558.94/x
  3. Step 3: Cross multiply
    877,976.78x = 1,316,359.98 × 345,558.94
  4. Step 4: Simplify right side
    877,976.78x = 454,879,959,347.22
  5. Step 5: Solve for x
    x = 454,879,959,347.22/877,976.78
  6. Step 6: Final answer
    x = 518,100.22

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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.