Home / 1,423,482.80-1,964,389.56-778,895.60

Finding the Fourth Proportional to 1,423,482.80, 1,964,389.56 and 778,895.60

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Solution

The fourth proportional to 1,423,482.80, 1,964,389.56 and 778,895.60 is: 1,074,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,482.80 : 1,964,389.56 = 778,895.60 : x
  2. Step 2: Convert to fraction form
    1,423,482.80/1,964,389.56 = 778,895.60/x
  3. Step 3: Cross multiply
    1,423,482.80x = 1,964,389.56 × 778,895.60
  4. Step 4: Simplify right side
    1,423,482.80x = 1,530,054,384,969.94
  5. Step 5: Solve for x
    x = 1,530,054,384,969.94/1,423,482.80
  6. Step 6: Final answer
    x = 1,074,866.79

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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.