Home / 1,242,172.51-1,863,259.04-389,244.02

Finding the Fourth Proportional to 1,242,172.51, 1,863,259.04 and 389,244.02

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Solution

The fourth proportional to 1,242,172.51, 1,863,259.04 and 389,244.02 is: 583,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,172.51 : 1,863,259.04 = 389,244.02 : x
  2. Step 2: Convert to fraction form
    1,242,172.51/1,863,259.04 = 389,244.02/x
  3. Step 3: Cross multiply
    1,242,172.51x = 1,863,259.04 × 389,244.02
  4. Step 4: Simplify right side
    1,242,172.51x = 725,262,430,687.76
  5. Step 5: Solve for x
    x = 725,262,430,687.76/1,242,172.51
  6. Step 6: Final answer
    x = 583,866.11

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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.