Home / 1,210,464.90-1,670,441.85-666,599.31

Finding the Fourth Proportional to 1,210,464.90, 1,670,441.85 and 666,599.31

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Solution

The fourth proportional to 1,210,464.90, 1,670,441.85 and 666,599.31 is: 919,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,464.90 : 1,670,441.85 = 666,599.31 : x
  2. Step 2: Convert to fraction form
    1,210,464.90/1,670,441.85 = 666,599.31/x
  3. Step 3: Cross multiply
    1,210,464.90x = 1,670,441.85 × 666,599.31
  4. Step 4: Simplify right side
    1,210,464.90x = 1,113,515,384,605.12
  5. Step 5: Solve for x
    x = 1,113,515,384,605.12/1,210,464.90
  6. Step 6: Final answer
    x = 919,907.21

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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.