Finding the Fourth Proportional to 553,753.48, 830,630.22 and 316,931.08
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Solution
The fourth proportional to 553,753.48, 830,630.22 and 316,931.08 is: 475,396.62
Step by Step Solution
- Step 1: Write the proportion equation
553,753.48 : 830,630.22 = 316,931.08 : x - Step 2: Convert to fraction form
553,753.48/830,630.22 = 316,931.08/x - Step 3: Cross multiply
553,753.48x = 830,630.22 × 316,931.08 - Step 4: Simplify right side
553,753.48x = 263,252,532,705.24 - Step 5: Solve for x
x = 263,252,532,705.24/553,753.48 - Step 6: Final answer
x = 475,396.62
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.