Finding the Fourth Proportional to 830,402.16, 1,145,717.94 and 467,699.28
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Solution
The fourth proportional to 830,402.16, 1,145,717.94 and 467,699.28 is: 645,291.50
Step by Step Solution
- Step 1: Write the proportion equation
830,402.16 : 1,145,717.94 = 467,699.28 : x - Step 2: Convert to fraction form
830,402.16/1,145,717.94 = 467,699.28/x - Step 3: Cross multiply
830,402.16x = 1,145,717.94 × 467,699.28 - Step 4: Simplify right side
830,402.16x = 535,851,455,621.08 - Step 5: Solve for x
x = 535,851,455,621.08/830,402.16 - Step 6: Final answer
x = 645,291.50
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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.