Home / 1,220,361.81-1,830,561.74-461,999.71

Finding the Fourth Proportional to 1,220,361.81, 1,830,561.74 and 461,999.71

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Solution

The fourth proportional to 1,220,361.81, 1,830,561.74 and 461,999.71 is: 693,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,361.81 : 1,830,561.74 = 461,999.71 : x
  2. Step 2: Convert to fraction form
    1,220,361.81/1,830,561.74 = 461,999.71/x
  3. Step 3: Cross multiply
    1,220,361.81x = 1,830,561.74 × 461,999.71
  4. Step 4: Simplify right side
    1,220,361.81x = 845,718,993,017.10
  5. Step 5: Solve for x
    x = 845,718,993,017.10/1,220,361.81
  6. Step 6: Final answer
    x = 693,006.77

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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.