Home / 1,210,805.88-1,670,850.36-666,929.94

Finding the Fourth Proportional to 1,210,805.88, 1,670,850.36 and 666,929.94

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Solution

The fourth proportional to 1,210,805.88, 1,670,850.36 and 666,929.94 is: 920,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,805.88 : 1,670,850.36 = 666,929.94 : x
  2. Step 2: Convert to fraction form
    1,210,805.88/1,670,850.36 = 666,929.94/x
  3. Step 3: Cross multiply
    1,210,805.88x = 1,670,850.36 × 666,929.94
  4. Step 4: Simplify right side
    1,210,805.88x = 1,114,340,130,343.78
  5. Step 5: Solve for x
    x = 1,114,340,130,343.78/1,210,805.88
  6. Step 6: Final answer
    x = 920,329.30

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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.