Home / 1,210,181.42-1,670,038.08-666,306.92

Finding the Fourth Proportional to 1,210,181.42, 1,670,038.08 and 666,306.92

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Solution

The fourth proportional to 1,210,181.42, 1,670,038.08 and 666,306.92 is: 919,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,181.42 : 1,670,038.08 = 666,306.92 : x
  2. Step 2: Convert to fraction form
    1,210,181.42/1,670,038.08 = 666,306.92/x
  3. Step 3: Cross multiply
    1,210,181.42x = 1,670,038.08 × 666,306.92
  4. Step 4: Simplify right side
    1,210,181.42x = 1,112,757,929,367.51
  5. Step 5: Solve for x
    x = 1,112,757,929,367.51/1,210,181.42
  6. Step 6: Final answer
    x = 919,496.79

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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.