Home / 1,210,340.07-1,670,269.29-666,474.56

Finding the Fourth Proportional to 1,210,340.07, 1,670,269.29 and 666,474.56

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Solution

The fourth proportional to 1,210,340.07, 1,670,269.29 and 666,474.56 is: 919,734.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,340.07 : 1,670,269.29 = 666,474.56 : x
  2. Step 2: Convert to fraction form
    1,210,340.07/1,670,269.29 = 666,474.56/x
  3. Step 3: Cross multiply
    1,210,340.07x = 1,670,269.29 × 666,474.56
  4. Step 4: Simplify right side
    1,210,340.07x = 1,113,191,981,782.92
  5. Step 5: Solve for x
    x = 1,113,191,981,782.92/1,210,340.07
  6. Step 6: Final answer
    x = 919,734.88

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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.