Finding the Fourth Proportional to 569,638.99, 786,086.25 and 314,981.47
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Solution
The fourth proportional to 569,638.99, 786,086.25 and 314,981.47 is: 434,665.82
Step by Step Solution
- Step 1: Write the proportion equation
569,638.99 : 786,086.25 = 314,981.47 : x - Step 2: Convert to fraction form
569,638.99/786,086.25 = 314,981.47/x - Step 3: Cross multiply
569,638.99x = 786,086.25 × 314,981.47 - Step 4: Simplify right side
569,638.99x = 247,602,598,641.36 - Step 5: Solve for x
x = 247,602,598,641.36/569,638.99 - Step 6: Final answer
x = 434,665.82
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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.