Home / 917,111.80-1,375,667.70-739,964.80

Finding the Fourth Proportional to 917,111.80, 1,375,667.70 and 739,964.80

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Solution

The fourth proportional to 917,111.80, 1,375,667.70 and 739,964.80 is: 1,109,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,111.80 : 1,375,667.70 = 739,964.80 : x
  2. Step 2: Convert to fraction form
    917,111.80/1,375,667.70 = 739,964.80/x
  3. Step 3: Cross multiply
    917,111.80x = 1,375,667.70 × 739,964.80
  4. Step 4: Simplify right side
    917,111.80x = 1,017,945,674,496.96
  5. Step 5: Solve for x
    x = 1,017,945,674,496.96/917,111.80
  6. Step 6: Final answer
    x = 1,109,947.20

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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.