Finding the Fourth Proportional to 918,240.75, 1,376,572.28 and 319,124.07
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Solution
The fourth proportional to 918,240.75, 1,376,572.28 and 319,124.07 is: 478,411.95
Step by Step Solution
- Step 1: Write the proportion equation
918,240.75 : 1,376,572.28 = 319,124.07 : x - Step 2: Convert to fraction form
918,240.75/1,376,572.28 = 319,124.07/x - Step 3: Cross multiply
918,240.75x = 1,376,572.28 × 319,124.07 - Step 4: Simplify right side
918,240.75x = 439,297,347,047.16 - Step 5: Solve for x
x = 439,297,347,047.16/918,240.75 - Step 6: Final answer
x = 478,411.95
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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.