Finding the Fourth Proportional to 636,688.84, 878,616.16 and 350,202.78
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Solution
The fourth proportional to 636,688.84, 878,616.16 and 350,202.78 is: 483,271.89
Step by Step Solution
- Step 1: Write the proportion equation
636,688.84 : 878,616.16 = 350,202.78 : x - Step 2: Convert to fraction form
636,688.84/878,616.16 = 350,202.78/x - Step 3: Cross multiply
636,688.84x = 878,616.16 × 350,202.78 - Step 4: Simplify right side
636,688.84x = 307,693,821,784.93 - Step 5: Solve for x
x = 307,693,821,784.93/636,688.84 - Step 6: Final answer
x = 483,271.89
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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.