Finding the Fourth Proportional to 879,025.68, 1,213,056.12 and 476,617.68
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Solution
The fourth proportional to 879,025.68, 1,213,056.12 and 476,617.68 is: 657,732.77
Step by Step Solution
- Step 1: Write the proportion equation
879,025.68 : 1,213,056.12 = 476,617.68 : x - Step 2: Convert to fraction form
879,025.68/1,213,056.12 = 476,617.68/x - Step 3: Cross multiply
879,025.68x = 1,213,056.12 × 476,617.68 - Step 4: Simplify right side
879,025.68x = 578,163,993,624.20 - Step 5: Solve for x
x = 578,163,993,624.20/879,025.68 - Step 6: Final answer
x = 657,732.77
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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.