Finding the Fourth Proportional to 1,029,571.47, 1,420,328.06 and 647,808.75
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Solution
The fourth proportional to 1,029,571.47, 1,420,328.06 and 647,808.75 is: 893,673.70
Step by Step Solution
- Step 1: Write the proportion equation
1,029,571.47 : 1,420,328.06 = 647,808.75 : x - Step 2: Convert to fraction form
1,029,571.47/1,420,328.06 = 647,808.75/x - Step 3: Cross multiply
1,029,571.47x = 1,420,328.06 × 647,808.75 - Step 4: Simplify right side
1,029,571.47x = 920,100,945,138.53 - Step 5: Solve for x
x = 920,100,945,138.53/1,029,571.47 - Step 6: Final answer
x = 893,673.70
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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.