Home / 1,222,294.36-1,686,740.80-678,398.24

Finding the Fourth Proportional to 1,222,294.36, 1,686,740.80 and 678,398.24

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Solution

The fourth proportional to 1,222,294.36, 1,686,740.80 and 678,398.24 is: 936,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,294.36 : 1,686,740.80 = 678,398.24 : x
  2. Step 2: Convert to fraction form
    1,222,294.36/1,686,740.80 = 678,398.24/x
  3. Step 3: Cross multiply
    1,222,294.36x = 1,686,740.80 × 678,398.24
  4. Step 4: Simplify right side
    1,222,294.36x = 1,144,281,990,056.19
  5. Step 5: Solve for x
    x = 1,144,281,990,056.19/1,222,294.36
  6. Step 6: Final answer
    x = 936,175.46

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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.