Home / 1,657,972.34-2,288,085.81-978,894.26

Finding the Fourth Proportional to 1,657,972.34, 2,288,085.81 and 978,894.26

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Solution

The fourth proportional to 1,657,972.34, 2,288,085.81 and 978,894.26 is: 1,350,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,972.34 : 2,288,085.81 = 978,894.26 : x
  2. Step 2: Convert to fraction form
    1,657,972.34/2,288,085.81 = 978,894.26/x
  3. Step 3: Cross multiply
    1,657,972.34x = 2,288,085.81 × 978,894.26
  4. Step 4: Simplify right side
    1,657,972.34x = 2,239,794,065,796.45
  5. Step 5: Solve for x
    x = 2,239,794,065,796.45/1,657,972.34
  6. Step 6: Final answer
    x = 1,350,923.66

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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.