Finding the Fourth Proportional to 801,225.06, 1,105,690.84 and 438,671.94
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Solution
The fourth proportional to 801,225.06, 1,105,690.84 and 438,671.94 is: 605,367.42
Step by Step Solution
- Step 1: Write the proportion equation
801,225.06 : 1,105,690.84 = 438,671.94 : x - Step 2: Convert to fraction form
801,225.06/1,105,690.84 = 438,671.94/x - Step 3: Cross multiply
801,225.06x = 1,105,690.84 × 438,671.94 - Step 4: Simplify right side
801,225.06x = 485,035,545,823.03 - Step 5: Solve for x
x = 485,035,545,823.03/801,225.06 - Step 6: Final answer
x = 605,367.42
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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.