Finding the Fourth Proportional to 609,050.78, 913,637.01 and 209,638.70
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Solution
The fourth proportional to 609,050.78, 913,637.01 and 209,638.70 is: 314,478.99
Step by Step Solution
- Step 1: Write the proportion equation
609,050.78 : 913,637.01 = 209,638.70 : x - Step 2: Convert to fraction form
609,050.78/913,637.01 = 209,638.70/x - Step 3: Cross multiply
609,050.78x = 913,637.01 × 209,638.70 - Step 4: Simplify right side
609,050.78x = 191,533,675,048.29 - Step 5: Solve for x
x = 191,533,675,048.29/609,050.78 - Step 6: Final answer
x = 314,478.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.