Finding the Fourth Proportional to 539,990.35, 745,089.30 and 348,893.06
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Solution
The fourth proportional to 539,990.35, 745,089.30 and 348,893.06 is: 481,409.50
Step by Step Solution
- Step 1: Write the proportion equation
539,990.35 : 745,089.30 = 348,893.06 : x - Step 2: Convert to fraction form
539,990.35/745,089.30 = 348,893.06/x - Step 3: Cross multiply
539,990.35x = 745,089.30 × 348,893.06 - Step 4: Simplify right side
539,990.35x = 259,956,482,124.81 - Step 5: Solve for x
x = 259,956,482,124.81/539,990.35 - Step 6: Final answer
x = 481,409.50
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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.