Finding the Fourth Proportional to 742,424.80, 1,024,546.88 and 402,893.05
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Solution
The fourth proportional to 742,424.80, 1,024,546.88 and 402,893.05 is: 555,992.76
Step by Step Solution
- Step 1: Write the proportion equation
742,424.80 : 1,024,546.88 = 402,893.05 : x - Step 2: Convert to fraction form
742,424.80/1,024,546.88 = 402,893.05/x - Step 3: Cross multiply
742,424.80x = 1,024,546.88 × 402,893.05 - Step 4: Simplify right side
742,424.80x = 412,782,812,775.35 - Step 5: Solve for x
x = 412,782,812,775.35/742,424.80 - Step 6: Final answer
x = 555,992.76
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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.