Home / 1,210,659.24-1,670,721.36-666,807.36

Finding the Fourth Proportional to 1,210,659.24, 1,670,721.36 and 666,807.36

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Solution

The fourth proportional to 1,210,659.24, 1,670,721.36 and 666,807.36 is: 920,200.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,659.24 : 1,670,721.36 = 666,807.36 : x
  2. Step 2: Convert to fraction form
    1,210,659.24/1,670,721.36 = 666,807.36/x
  3. Step 3: Cross multiply
    1,210,659.24x = 1,670,721.36 × 666,807.36
  4. Step 4: Simplify right side
    1,210,659.24x = 1,114,049,299,357.21
  5. Step 5: Solve for x
    x = 1,114,049,299,357.21/1,210,659.24
  6. Step 6: Final answer
    x = 920,200.55

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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.