Finding the Fourth Proportional to 527,126.36, 727,389.68 and 309,312.54
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Solution
The fourth proportional to 527,126.36, 727,389.68 and 309,312.54 is: 426,825.08
Step by Step Solution
- Step 1: Write the proportion equation
527,126.36 : 727,389.68 = 309,312.54 : x - Step 2: Convert to fraction form
527,126.36/727,389.68 = 309,312.54/x - Step 3: Cross multiply
527,126.36x = 727,389.68 × 309,312.54 - Step 4: Simplify right side
527,126.36x = 224,990,749,490.59 - Step 5: Solve for x
x = 224,990,749,490.59/527,126.36 - Step 6: Final answer
x = 426,825.08
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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.