Finding the Fourth Proportional to 918,117.09, 1,267,032.35 and 510,236.12
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Solution
The fourth proportional to 918,117.09, 1,267,032.35 and 510,236.12 is: 704,142.95
Step by Step Solution
- Step 1: Write the proportion equation
918,117.09 : 1,267,032.35 = 510,236.12 : x - Step 2: Convert to fraction form
918,117.09/1,267,032.35 = 510,236.12/x - Step 3: Cross multiply
918,117.09x = 1,267,032.35 × 510,236.12 - Step 4: Simplify right side
918,117.09x = 646,485,674,621.65 - Step 5: Solve for x
x = 646,485,674,621.65/918,117.09 - Step 6: Final answer
x = 704,142.95
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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.