Home / 1,210,341.68-1,670,205.32-666,374.16

Finding the Fourth Proportional to 1,210,341.68, 1,670,205.32 and 666,374.16

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Solution

The fourth proportional to 1,210,341.68, 1,670,205.32 and 666,374.16 is: 919,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,341.68 : 1,670,205.32 = 666,374.16 : x
  2. Step 2: Convert to fraction form
    1,210,341.68/1,670,205.32 = 666,374.16/x
  3. Step 3: Cross multiply
    1,210,341.68x = 1,670,205.32 × 666,374.16
  4. Step 4: Simplify right side
    1,210,341.68x = 1,112,981,667,142.53
  5. Step 5: Solve for x
    x = 1,112,981,667,142.53/1,210,341.68
  6. Step 6: Final answer
    x = 919,559.89

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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.