Home / 1,423,618.09-1,964,592.78-779,038.11

Finding the Fourth Proportional to 1,423,618.09, 1,964,592.78 and 779,038.11

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Solution

The fourth proportional to 1,423,618.09, 1,964,592.78 and 779,038.11 is: 1,075,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,618.09 : 1,964,592.78 = 779,038.11 : x
  2. Step 2: Convert to fraction form
    1,423,618.09/1,964,592.78 = 779,038.11/x
  3. Step 3: Cross multiply
    1,423,618.09x = 1,964,592.78 × 779,038.11
  4. Step 4: Simplify right side
    1,423,618.09x = 1,530,492,647,711.54
  5. Step 5: Solve for x
    x = 1,530,492,647,711.54/1,423,618.09
  6. Step 6: Final answer
    x = 1,075,072.49

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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.