Finding the Fourth Proportional to 3,192,987.84, 4,406,392.80 and 1,742,688.96
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Solution
The fourth proportional to 3,192,987.84, 4,406,392.80 and 1,742,688.96 is: 2,404,948.74
Step by Step Solution
- Step 1: Write the proportion equation
3,192,987.84 : 4,406,392.80 = 1,742,688.96 : x - Step 2: Convert to fraction form
3,192,987.84/4,406,392.80 = 1,742,688.96/x - Step 3: Cross multiply
3,192,987.84x = 4,406,392.80 × 1,742,688.96 - Step 4: Simplify right side
3,192,987.84x = 7,678,972,085,983.49 - Step 5: Solve for x
x = 7,678,972,085,983.49/3,192,987.84 - Step 6: Final answer
x = 2,404,948.74
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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.