Home / 1,315,131.84-1,972,661.28-355,680.48

Finding the Fourth Proportional to 1,315,131.84, 1,972,661.28 and 355,680.48

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Solution

The fourth proportional to 1,315,131.84, 1,972,661.28 and 355,680.48 is: 533,510.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,131.84 : 1,972,661.28 = 355,680.48 : x
  2. Step 2: Convert to fraction form
    1,315,131.84/1,972,661.28 = 355,680.48/x
  3. Step 3: Cross multiply
    1,315,131.84x = 1,972,661.28 × 355,680.48
  4. Step 4: Simplify right side
    1,315,131.84x = 701,637,110,947.81
  5. Step 5: Solve for x
    x = 701,637,110,947.81/1,315,131.84
  6. Step 6: Final answer
    x = 533,510.85

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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.