Home / 1,316,599.63-1,816,393.09-765,223.72

Finding the Fourth Proportional to 1,316,599.63, 1,816,393.09 and 765,223.72

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Solution

The fourth proportional to 1,316,599.63, 1,816,393.09 and 765,223.72 is: 1,055,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,599.63 : 1,816,393.09 = 765,223.72 : x
  2. Step 2: Convert to fraction form
    1,316,599.63/1,816,393.09 = 765,223.72/x
  3. Step 3: Cross multiply
    1,316,599.63x = 1,816,393.09 × 765,223.72
  4. Step 4: Simplify right side
    1,316,599.63x = 1,389,947,077,312.09
  5. Step 5: Solve for x
    x = 1,389,947,077,312.09/1,316,599.63
  6. Step 6: Final answer
    x = 1,055,709.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.