Finding the Fourth Proportional to 513,603.60, 708,999.99 and 306,944.94
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Solution
The fourth proportional to 513,603.60, 708,999.99 and 306,944.94 is: 423,719.69
Step by Step Solution
- Step 1: Write the proportion equation
513,603.60 : 708,999.99 = 306,944.94 : x - Step 2: Convert to fraction form
513,603.60/708,999.99 = 306,944.94/x - Step 3: Cross multiply
513,603.60x = 708,999.99 × 306,944.94 - Step 4: Simplify right side
513,603.60x = 217,623,959,390.55 - Step 5: Solve for x
x = 217,623,959,390.55/513,603.60 - Step 6: Final answer
x = 423,719.69
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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.