Finding the Fourth Proportional to 935,088.68, 1,290,428.28 and 505,367.76
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Solution
The fourth proportional to 935,088.68, 1,290,428.28 and 505,367.76 is: 697,410.70
Step by Step Solution
- Step 1: Write the proportion equation
935,088.68 : 1,290,428.28 = 505,367.76 : x - Step 2: Convert to fraction form
935,088.68/1,290,428.28 = 505,367.76/x - Step 3: Cross multiply
935,088.68x = 1,290,428.28 × 505,367.76 - Step 4: Simplify right side
935,088.68x = 652,140,849,304.25 - Step 5: Solve for x
x = 652,140,849,304.25/935,088.68 - Step 6: Final answer
x = 697,410.70
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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.