Home / 1,315,827.32-1,972,150.54-640,897.26

Finding the Fourth Proportional to 1,315,827.32, 1,972,150.54 and 640,897.26

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Solution

The fourth proportional to 1,315,827.32, 1,972,150.54 and 640,897.26 is: 960,571.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,827.32 : 1,972,150.54 = 640,897.26 : x
  2. Step 2: Convert to fraction form
    1,315,827.32/1,972,150.54 = 640,897.26/x
  3. Step 3: Cross multiply
    1,315,827.32x = 1,972,150.54 × 640,897.26
  4. Step 4: Simplify right side
    1,315,827.32x = 1,263,945,877,393.52
  5. Step 5: Solve for x
    x = 1,263,945,877,393.52/1,315,827.32
  6. Step 6: Final answer
    x = 960,571.24

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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.