Home / 1,382,835-1,908,312.30-779,244.60

Finding the Fourth Proportional to 1,382,835, 1,908,312.30 and 779,244.60

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Solution

The fourth proportional to 1,382,835, 1,908,312.30 and 779,244.60 is: 1,075,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,835 : 1,908,312.30 = 779,244.60 : x
  2. Step 2: Convert to fraction form
    1,382,835/1,908,312.30 = 779,244.60/x
  3. Step 3: Cross multiply
    1,382,835x = 1,908,312.30 × 779,244.60
  4. Step 4: Simplify right side
    1,382,835x = 1,487,042,054,888.58
  5. Step 5: Solve for x
    x = 1,487,042,054,888.58/1,382,835
  6. Step 6: Final answer
    x = 1,075,357.55

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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.