Finding the Fourth Proportional to 788,643.12, 1,088,328.06 and 426,066.84
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Solution
The fourth proportional to 788,643.12, 1,088,328.06 and 426,066.84 is: 587,972.54
Step by Step Solution
- Step 1: Write the proportion equation
788,643.12 : 1,088,328.06 = 426,066.84 : x - Step 2: Convert to fraction form
788,643.12/1,088,328.06 = 426,066.84/x - Step 3: Cross multiply
788,643.12x = 1,088,328.06 × 426,066.84 - Step 4: Simplify right side
788,643.12x = 463,700,497,407.53 - Step 5: Solve for x
x = 463,700,497,407.53/788,643.12 - Step 6: Final answer
x = 587,972.54
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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.