Finding the Fourth Proportional to 551,657.68, 761,282.39 and 306,636.02
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Solution
The fourth proportional to 551,657.68, 761,282.39 and 306,636.02 is: 423,154.80
Step by Step Solution
- Step 1: Write the proportion equation
551,657.68 : 761,282.39 = 306,636.02 : x - Step 2: Convert to fraction form
551,657.68/761,282.39 = 306,636.02/x - Step 3: Cross multiply
551,657.68x = 761,282.39 × 306,636.02 - Step 4: Simplify right side
551,657.68x = 233,436,596,826.10 - Step 5: Solve for x
x = 233,436,596,826.10/551,657.68 - Step 6: Final answer
x = 423,154.80
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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.