Finding the Fourth Proportional to 695,602.31, 959,885.12 and 385,484.09
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Solution
The fourth proportional to 695,602.31, 959,885.12 and 385,484.09 is: 531,942.51
Step by Step Solution
- Step 1: Write the proportion equation
695,602.31 : 959,885.12 = 385,484.09 : x - Step 2: Convert to fraction form
695,602.31/959,885.12 = 385,484.09/x - Step 3: Cross multiply
695,602.31x = 959,885.12 × 385,484.09 - Step 4: Simplify right side
695,602.31x = 370,020,440,060.32 - Step 5: Solve for x
x = 370,020,440,060.32/695,602.31 - Step 6: Final answer
x = 531,942.51
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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.