Home / 1,218,783.69-1,827,055.85-419,875.29

Finding the Fourth Proportional to 1,218,783.69, 1,827,055.85 and 419,875.29

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Solution

The fourth proportional to 1,218,783.69, 1,827,055.85 and 419,875.29 is: 629,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,783.69 : 1,827,055.85 = 419,875.29 : x
  2. Step 2: Convert to fraction form
    1,218,783.69/1,827,055.85 = 419,875.29/x
  3. Step 3: Cross multiply
    1,218,783.69x = 1,827,055.85 × 419,875.29
  4. Step 4: Simplify right side
    1,218,783.69x = 767,135,602,765.57
  5. Step 5: Solve for x
    x = 767,135,602,765.57/1,218,783.69
  6. Step 6: Final answer
    x = 629,427.20

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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.