Finding the Fourth Proportional to 742,331.55, 1,024,419.24 and 402,799.80
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Solution
The fourth proportional to 742,331.55, 1,024,419.24 and 402,799.80 is: 555,864.65
Step by Step Solution
- Step 1: Write the proportion equation
742,331.55 : 1,024,419.24 = 402,799.80 : x - Step 2: Convert to fraction form
742,331.55/1,024,419.24 = 402,799.80/x - Step 3: Cross multiply
742,331.55x = 1,024,419.24 × 402,799.80 - Step 4: Simplify right side
742,331.55x = 412,635,864,988.15 - Step 5: Solve for x
x = 412,635,864,988.15/742,331.55 - Step 6: Final answer
x = 555,864.65
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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.