Finding the Fourth Proportional to 742,535.36, 1,024,672.80 and 402,996.80
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Solution
The fourth proportional to 742,535.36, 1,024,672.80 and 402,996.80 is: 556,121.47
Step by Step Solution
- Step 1: Write the proportion equation
742,535.36 : 1,024,672.80 = 402,996.80 : x - Step 2: Convert to fraction form
742,535.36/1,024,672.80 = 402,996.80/x - Step 3: Cross multiply
742,535.36x = 1,024,672.80 × 402,996.80 - Step 4: Simplify right side
742,535.36x = 412,939,859,447.04 - Step 5: Solve for x
x = 412,939,859,447.04/742,535.36 - Step 6: Final answer
x = 556,121.47
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1.5x scale
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.