Home / 678,074.69-1,016,395.09-245,503.71

Finding the Fourth Proportional to 678,074.69, 1,016,395.09 and 245,503.71

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Solution

The fourth proportional to 678,074.69, 1,016,395.09 and 245,503.71 is: 367,995.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,074.69 : 1,016,395.09 = 245,503.71 : x
  2. Step 2: Convert to fraction form
    678,074.69/1,016,395.09 = 245,503.71/x
  3. Step 3: Cross multiply
    678,074.69x = 1,016,395.09 × 245,503.71
  4. Step 4: Simplify right side
    678,074.69x = 249,528,764,807.03
  5. Step 5: Solve for x
    x = 249,528,764,807.03/678,074.69
  6. Step 6: Final answer
    x = 367,995.99

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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.