Finding the Fourth Proportional to 1,319,875.74, 1,821,428.49 and 716,263.74
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Solution
The fourth proportional to 1,319,875.74, 1,821,428.49 and 716,263.74 is: 988,443.94
Step by Step Solution
- Step 1: Write the proportion equation
1,319,875.74 : 1,821,428.49 = 716,263.74 : x - Step 2: Convert to fraction form
1,319,875.74/1,821,428.49 = 716,263.74/x - Step 3: Cross multiply
1,319,875.74x = 1,821,428.49 × 716,263.74 - Step 4: Simplify right side
1,319,875.74x = 1,304,623,182,389.95 - Step 5: Solve for x
x = 1,304,623,182,389.95/1,319,875.74 - Step 6: Final answer
x = 988,443.94
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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.