Finding the Fourth Proportional to 819,564.30, 1,130,970.78 and 452,055.99
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Solution
The fourth proportional to 819,564.30, 1,130,970.78 and 452,055.99 is: 623,821.85
Step by Step Solution
- Step 1: Write the proportion equation
819,564.30 : 1,130,970.78 = 452,055.99 : x - Step 2: Convert to fraction form
819,564.30/1,130,970.78 = 452,055.99/x - Step 3: Cross multiply
819,564.30x = 1,130,970.78 × 452,055.99 - Step 4: Simplify right side
819,564.30x = 511,262,115,613.97 - Step 5: Solve for x
x = 511,262,115,613.97/819,564.30 - Step 6: Final answer
x = 623,821.85
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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.