Home / 1,214,555.40-1,821,852.54-540,479.88

Finding the Fourth Proportional to 1,214,555.40, 1,821,852.54 and 540,479.88

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Solution

The fourth proportional to 1,214,555.40, 1,821,852.54 and 540,479.88 is: 810,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,555.40 : 1,821,852.54 = 540,479.88 : x
  2. Step 2: Convert to fraction form
    1,214,555.40/1,821,852.54 = 540,479.88/x
  3. Step 3: Cross multiply
    1,214,555.40x = 1,821,852.54 × 540,479.88
  4. Step 4: Simplify right side
    1,214,555.40x = 984,674,642,196.90
  5. Step 5: Solve for x
    x = 984,674,642,196.90/1,214,555.40
  6. Step 6: Final answer
    x = 810,728.47

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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.