Finding the Fourth Proportional to 687,133.74, 948,269.90 and 415,149.08
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Solution
The fourth proportional to 687,133.74, 948,269.90 and 415,149.08 is: 572,921.04
Step by Step Solution
- Step 1: Write the proportion equation
687,133.74 : 948,269.90 = 415,149.08 : x - Step 2: Convert to fraction form
687,133.74/948,269.90 = 415,149.08/x - Step 3: Cross multiply
687,133.74x = 948,269.90 × 415,149.08 - Step 4: Simplify right side
687,133.74x = 393,673,376,576.69 - Step 5: Solve for x
x = 393,673,376,576.69/687,133.74 - Step 6: Final answer
x = 572,921.04
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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.