Finding the Fourth Proportional to 613,043.76, 845,873.64 and 358,345.68
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Solution
The fourth proportional to 613,043.76, 845,873.64 and 358,345.68 is: 494,442.95
Step by Step Solution
- Step 1: Write the proportion equation
613,043.76 : 845,873.64 = 358,345.68 : x - Step 2: Convert to fraction form
613,043.76/845,873.64 = 358,345.68/x - Step 3: Cross multiply
613,043.76x = 845,873.64 × 358,345.68 - Step 4: Simplify right side
613,043.76x = 303,115,164,719.88 - Step 5: Solve for x
x = 303,115,164,719.88/613,043.76 - Step 6: Final answer
x = 494,442.95
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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.