Home / 1,290,940.53-1,934,639.30-816,777.06

Finding the Fourth Proportional to 1,290,940.53, 1,934,639.30 and 816,777.06

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Solution

The fourth proportional to 1,290,940.53, 1,934,639.30 and 816,777.06 is: 1,224,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,940.53 : 1,934,639.30 = 816,777.06 : x
  2. Step 2: Convert to fraction form
    1,290,940.53/1,934,639.30 = 816,777.06/x
  3. Step 3: Cross multiply
    1,290,940.53x = 1,934,639.30 × 816,777.06
  4. Step 4: Simplify right side
    1,290,940.53x = 1,580,168,999,614.46
  5. Step 5: Solve for x
    x = 1,580,168,999,614.46/1,290,940.53
  6. Step 6: Final answer
    x = 1,224,044.77

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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.