Home / 1,210,713.86-1,670,796.44-666,851.62

Finding the Fourth Proportional to 1,210,713.86, 1,670,796.44 and 666,851.62

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Solution

The fourth proportional to 1,210,713.86, 1,670,796.44 and 666,851.62 is: 920,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,713.86 : 1,670,796.44 = 666,851.62 : x
  2. Step 2: Convert to fraction form
    1,210,713.86/1,670,796.44 = 666,851.62/x
  3. Step 3: Cross multiply
    1,210,713.86x = 1,670,796.44 × 666,851.62
  4. Step 4: Simplify right side
    1,210,713.86x = 1,114,173,312,704.23
  5. Step 5: Solve for x
    x = 1,114,173,312,704.23/1,210,713.86
  6. Step 6: Final answer
    x = 920,261.47

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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.