Finding the Fourth Proportional to 478,301.95, 660,031.78 and 297,009.99
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Solution
The fourth proportional to 478,301.95, 660,031.78 and 297,009.99 is: 409,858.32
Step by Step Solution
- Step 1: Write the proportion equation
478,301.95 : 660,031.78 = 297,009.99 : x - Step 2: Convert to fraction form
478,301.95/660,031.78 = 297,009.99/x - Step 3: Cross multiply
478,301.95x = 660,031.78 × 297,009.99 - Step 4: Simplify right side
478,301.95x = 196,036,030,892.43 - Step 5: Solve for x
x = 196,036,030,892.43/478,301.95 - Step 6: Final answer
x = 409,858.32
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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.