Home / 1,370,421.76-2,055,660.84-423,792.16

Finding the Fourth Proportional to 1,370,421.76, 2,055,660.84 and 423,792.16

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Solution

The fourth proportional to 1,370,421.76, 2,055,660.84 and 423,792.16 is: 635,696.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,421.76 : 2,055,660.84 = 423,792.16 : x
  2. Step 2: Convert to fraction form
    1,370,421.76/2,055,660.84 = 423,792.16/x
  3. Step 3: Cross multiply
    1,370,421.76x = 2,055,660.84 × 423,792.16
  4. Step 4: Simplify right side
    1,370,421.76x = 871,172,947,611.01
  5. Step 5: Solve for x
    x = 871,172,947,611.01/1,370,421.76
  6. Step 6: Final answer
    x = 635,696.96

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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.