Home / 1,173,457.69-1,619,315.61-720,661.21

Finding the Fourth Proportional to 1,173,457.69, 1,619,315.61 and 720,661.21

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Solution

The fourth proportional to 1,173,457.69, 1,619,315.61 and 720,661.21 is: 994,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,457.69 : 1,619,315.61 = 720,661.21 : x
  2. Step 2: Convert to fraction form
    1,173,457.69/1,619,315.61 = 720,661.21/x
  3. Step 3: Cross multiply
    1,173,457.69x = 1,619,315.61 × 720,661.21
  4. Step 4: Simplify right side
    1,173,457.69x = 1,166,977,946,874.49
  5. Step 5: Solve for x
    x = 1,166,977,946,874.49/1,173,457.69
  6. Step 6: Final answer
    x = 994,478.08

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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.