Finding the Fourth Proportional to 906,811.35, 1,363,169.48 and 642,403.05
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Solution
The fourth proportional to 906,811.35, 1,363,169.48 and 642,403.05 is: 965,696.15
Step by Step Solution
- Step 1: Write the proportion equation
906,811.35 : 1,363,169.48 = 642,403.05 : x - Step 2: Convert to fraction form
906,811.35/1,363,169.48 = 642,403.05/x - Step 3: Cross multiply
906,811.35x = 1,363,169.48 × 642,403.05 - Step 4: Simplify right side
906,811.35x = 875,704,228,406.90 - Step 5: Solve for x
x = 875,704,228,406.90/906,811.35 - Step 6: Final answer
x = 965,696.15
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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.