Finding the Fourth Proportional to 639,587.53, 959,368.12 and 213,154.32
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Solution
The fourth proportional to 639,587.53, 959,368.12 and 213,154.32 is: 319,727.09
Step by Step Solution
- Step 1: Write the proportion equation
639,587.53 : 959,368.12 = 213,154.32 : x - Step 2: Convert to fraction form
639,587.53/959,368.12 = 213,154.32/x - Step 3: Cross multiply
639,587.53x = 959,368.12 × 213,154.32 - Step 4: Simplify right side
639,587.53x = 204,493,459,248.28 - Step 5: Solve for x
x = 204,493,459,248.28/639,587.53 - Step 6: Final answer
x = 319,727.09
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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.