Finding the Fourth Proportional to 813,731.81, 1,122,890.99 and 446,150.09
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Solution
The fourth proportional to 813,731.81, 1,122,890.99 and 446,150.09 is: 615,654.83
Step by Step Solution
- Step 1: Write the proportion equation
813,731.81 : 1,122,890.99 = 446,150.09 : x - Step 2: Convert to fraction form
813,731.81/1,122,890.99 = 446,150.09/x - Step 3: Cross multiply
813,731.81x = 1,122,890.99 × 446,150.09 - Step 4: Simplify right side
813,731.81x = 500,977,916,825.17 - Step 5: Solve for x
x = 500,977,916,825.17/813,731.81 - Step 6: Final answer
x = 615,654.83
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1.5x scale
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.