Finding the Fourth Proportional to 858,822.12, 1,185,228.18 and 496,312.20
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Solution
The fourth proportional to 858,822.12, 1,185,228.18 and 496,312.20 is: 684,941.84
Step by Step Solution
- Step 1: Write the proportion equation
858,822.12 : 1,185,228.18 = 496,312.20 : x - Step 2: Convert to fraction form
858,822.12/1,185,228.18 = 496,312.20/x - Step 3: Cross multiply
858,822.12x = 1,185,228.18 × 496,312.20 - Step 4: Simplify right side
858,822.12x = 588,243,205,517.80 - Step 5: Solve for x
x = 588,243,205,517.80/858,822.12 - Step 6: Final answer
x = 684,941.84
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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.