Home / 1,210,642.25-1,670,762.15-666,777.92

Finding the Fourth Proportional to 1,210,642.25, 1,670,762.15 and 666,777.92

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Solution

The fourth proportional to 1,210,642.25, 1,670,762.15 and 666,777.92 is: 920,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,642.25 : 1,670,762.15 = 666,777.92 : x
  2. Step 2: Convert to fraction form
    1,210,642.25/1,670,762.15 = 666,777.92/x
  3. Step 3: Cross multiply
    1,210,642.25x = 1,670,762.15 × 666,777.92
  4. Step 4: Simplify right side
    1,210,642.25x = 1,114,027,299,504.03
  5. Step 5: Solve for x
    x = 1,114,027,299,504.03/1,210,642.25
  6. Step 6: Final answer
    x = 920,195.30

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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.