Home / 1,173,486.69-1,619,355.65-720,690.21

Finding the Fourth Proportional to 1,173,486.69, 1,619,355.65 and 720,690.21

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Solution

The fourth proportional to 1,173,486.69, 1,619,355.65 and 720,690.21 is: 994,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,486.69 : 1,619,355.65 = 720,690.21 : x
  2. Step 2: Convert to fraction form
    1,173,486.69/1,619,355.65 = 720,690.21/x
  3. Step 3: Cross multiply
    1,173,486.69x = 1,619,355.65 × 720,690.21
  4. Step 4: Simplify right side
    1,173,486.69x = 1,167,053,759,859.74
  5. Step 5: Solve for x
    x = 1,167,053,759,859.74/1,173,486.69
  6. Step 6: Final answer
    x = 994,518.11

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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.