Finding the Fourth Proportional to 687,600.10, 948,840.61 and 381,652.44
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Solution
The fourth proportional to 687,600.10, 948,840.61 and 381,652.44 is: 526,653.99
Step by Step Solution
- Step 1: Write the proportion equation
687,600.10 : 948,840.61 = 381,652.44 : x - Step 2: Convert to fraction form
687,600.10/948,840.61 = 381,652.44/x - Step 3: Cross multiply
687,600.10x = 948,840.61 × 381,652.44 - Step 4: Simplify right side
687,600.10x = 362,127,333,977.59 - Step 5: Solve for x
x = 362,127,333,977.59/687,600.10 - Step 6: Final answer
x = 526,653.99
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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.