Finding the Fourth Proportional to 612,611.64, 845,280.18 and 357,913.62
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Solution
The fourth proportional to 612,611.64, 845,280.18 and 357,913.62 is: 493,848.42
Step by Step Solution
- Step 1: Write the proportion equation
612,611.64 : 845,280.18 = 357,913.62 : x - Step 2: Convert to fraction form
612,611.64/845,280.18 = 357,913.62/x - Step 3: Cross multiply
612,611.64x = 845,280.18 × 357,913.62 - Step 4: Simplify right side
612,611.64x = 302,537,289,138.05 - Step 5: Solve for x
x = 302,537,289,138.05/612,611.64 - Step 6: Final answer
x = 493,848.42
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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.