Home / 2,958,979.69-4,083,159.40-1,812,904.21

Finding the Fourth Proportional to 2,958,979.69, 4,083,159.40 and 1,812,904.21

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Solution

The fourth proportional to 2,958,979.69, 4,083,159.40 and 1,812,904.21 is: 2,501,665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958,979.69 : 4,083,159.40 = 1,812,904.21 : x
  2. Step 2: Convert to fraction form
    2,958,979.69/4,083,159.40 = 1,812,904.21/x
  3. Step 3: Cross multiply
    2,958,979.69x = 4,083,159.40 × 1,812,904.21
  4. Step 4: Simplify right side
    2,958,979.69x = 7,402,376,866,361.07
  5. Step 5: Solve for x
    x = 7,402,376,866,361.07/2,958,979.69
  6. Step 6: Final answer
    x = 2,501,665.32

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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.