Home / 1,368,794.71-1,889,078.59-788,038.48

Finding the Fourth Proportional to 1,368,794.71, 1,889,078.59 and 788,038.48

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Solution

The fourth proportional to 1,368,794.71, 1,889,078.59 and 788,038.48 is: 1,087,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,794.71 : 1,889,078.59 = 788,038.48 : x
  2. Step 2: Convert to fraction form
    1,368,794.71/1,889,078.59 = 788,038.48/x
  3. Step 3: Cross multiply
    1,368,794.71x = 1,889,078.59 × 788,038.48
  4. Step 4: Simplify right side
    1,368,794.71x = 1,488,666,620,664.14
  5. Step 5: Solve for x
    x = 1,488,666,620,664.14/1,368,794.71
  6. Step 6: Final answer
    x = 1,087,574.79

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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.