Home / 1,278,017.19-1,763,669.70-705,057.21

Finding the Fourth Proportional to 1,278,017.19, 1,763,669.70 and 705,057.21

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Solution

The fourth proportional to 1,278,017.19, 1,763,669.70 and 705,057.21 is: 972,982.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,017.19 : 1,763,669.70 = 705,057.21 : x
  2. Step 2: Convert to fraction form
    1,278,017.19/1,763,669.70 = 705,057.21/x
  3. Step 3: Cross multiply
    1,278,017.19x = 1,763,669.70 × 705,057.21
  4. Step 4: Simplify right side
    1,278,017.19x = 1,243,488,038,043.54
  5. Step 5: Solve for x
    x = 1,243,488,038,043.54/1,278,017.19
  6. Step 6: Final answer
    x = 972,982.25

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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.