Home / 1,289,097.63-1,779,118.75-779,803.65

Finding the Fourth Proportional to 1,289,097.63, 1,779,118.75 and 779,803.65

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Solution

The fourth proportional to 1,289,097.63, 1,779,118.75 and 779,803.65 is: 1,076,228.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,097.63 : 1,779,118.75 = 779,803.65 : x
  2. Step 2: Convert to fraction form
    1,289,097.63/1,779,118.75 = 779,803.65/x
  3. Step 3: Cross multiply
    1,289,097.63x = 1,779,118.75 × 779,803.65
  4. Step 4: Simplify right side
    1,289,097.63x = 1,387,363,295,033.44
  5. Step 5: Solve for x
    x = 1,387,363,295,033.44/1,289,097.63
  6. Step 6: Final answer
    x = 1,076,228.26

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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.