Finding the Fourth Proportional to 916,291.96, 1,374,108.63 and 317,090.44
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Solution
The fourth proportional to 916,291.96, 1,374,108.63 and 317,090.44 is: 475,521.70
Step by Step Solution
- Step 1: Write the proportion equation
916,291.96 : 1,374,108.63 = 317,090.44 : x - Step 2: Convert to fraction form
916,291.96/1,374,108.63 = 317,090.44/x - Step 3: Cross multiply
916,291.96x = 1,374,108.63 × 317,090.44 - Step 4: Simplify right side
916,291.96x = 435,716,710,094.50 - Step 5: Solve for x
x = 435,716,710,094.50/916,291.96 - Step 6: Final answer
x = 475,521.70
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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.