Finding the Fourth Proportional to 558,471.69, 770,666.64 and 310,098.17
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Solution
The fourth proportional to 558,471.69, 770,666.64 and 310,098.17 is: 427,921.99
Step by Step Solution
- Step 1: Write the proportion equation
558,471.69 : 770,666.64 = 310,098.17 : x - Step 2: Convert to fraction form
558,471.69/770,666.64 = 310,098.17/x - Step 3: Cross multiply
558,471.69x = 770,666.64 × 310,098.17 - Step 4: Simplify right side
558,471.69x = 238,982,316,816.07 - Step 5: Solve for x
x = 238,982,316,816.07/558,471.69 - Step 6: Final answer
x = 427,921.99
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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.