Home / 510,968.07-705,107.65-281,480.23

Finding the Fourth Proportional to 510,968.07, 705,107.65 and 281,480.23

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Solution

The fourth proportional to 510,968.07, 705,107.65 and 281,480.23 is: 388,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,968.07 : 705,107.65 = 281,480.23 : x
  2. Step 2: Convert to fraction form
    510,968.07/705,107.65 = 281,480.23/x
  3. Step 3: Cross multiply
    510,968.07x = 705,107.65 × 281,480.23
  4. Step 4: Simplify right side
    510,968.07x = 198,473,863,496.76
  5. Step 5: Solve for x
    x = 198,473,863,496.76/510,968.07
  6. Step 6: Final answer
    x = 388,427.13

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1.5x scale

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.