Finding the Fourth Proportional to 719,893.40, 1,080,036.95 and 315,011.99
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Solution
The fourth proportional to 719,893.40, 1,080,036.95 and 315,011.99 is: 472,604.12
Step by Step Solution
- Step 1: Write the proportion equation
719,893.40 : 1,080,036.95 = 315,011.99 : x - Step 2: Convert to fraction form
719,893.40/1,080,036.95 = 315,011.99/x - Step 3: Cross multiply
719,893.40x = 1,080,036.95 × 315,011.99 - Step 4: Simplify right side
719,893.40x = 340,224,581,917.79 - Step 5: Solve for x
x = 340,224,581,917.79/719,893.40 - Step 6: Final answer
x = 472,604.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.