Home / 1,386,829.71-2,080,904.31-961,020.81

Finding the Fourth Proportional to 1,386,829.71, 2,080,904.31 and 961,020.81

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Solution

The fourth proportional to 1,386,829.71, 2,080,904.31 and 961,020.81 is: 1,441,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,829.71 : 2,080,904.31 = 961,020.81 : x
  2. Step 2: Convert to fraction form
    1,386,829.71/2,080,904.31 = 961,020.81/x
  3. Step 3: Cross multiply
    1,386,829.71x = 2,080,904.31 × 961,020.81
  4. Step 4: Simplify right side
    1,386,829.71x = 1,999,792,345,528.69
  5. Step 5: Solve for x
    x = 1,999,792,345,528.69/1,386,829.71
  6. Step 6: Final answer
    x = 1,441,988.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.