Home / 629,910.12-869,275.36-343,430.13

Finding the Fourth Proportional to 629,910.12, 869,275.36 and 343,430.13

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Solution

The fourth proportional to 629,910.12, 869,275.36 and 343,430.13 is: 473,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,910.12 : 869,275.36 = 343,430.13 : x
  2. Step 2: Convert to fraction form
    629,910.12/869,275.36 = 343,430.13/x
  3. Step 3: Cross multiply
    629,910.12x = 869,275.36 × 343,430.13
  4. Step 4: Simplify right side
    629,910.12x = 298,535,351,205.21
  5. Step 5: Solve for x
    x = 298,535,351,205.21/629,910.12
  6. Step 6: Final answer
    x = 473,933.25

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Double scale
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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.