Finding the Fourth Proportional to 656,847.36, 906,448.77 and 355,041.36
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Solution
The fourth proportional to 656,847.36, 906,448.77 and 355,041.36 is: 489,956.76
Step by Step Solution
- Step 1: Write the proportion equation
656,847.36 : 906,448.77 = 355,041.36 : x - Step 2: Convert to fraction form
656,847.36/906,448.77 = 355,041.36/x - Step 3: Cross multiply
656,847.36x = 906,448.77 × 355,041.36 - Step 4: Simplify right side
656,847.36x = 321,826,804,071.13 - Step 5: Solve for x
x = 321,826,804,071.13/656,847.36 - Step 6: Final answer
x = 489,956.76
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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.