Finding the Fourth Proportional to 840,124.21, 1,260,186.58 and 209,038.03
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Solution
The fourth proportional to 840,124.21, 1,260,186.58 and 209,038.03 is: 313,557.10
Step by Step Solution
- Step 1: Write the proportion equation
840,124.21 : 1,260,186.58 = 209,038.03 : x - Step 2: Convert to fraction form
840,124.21/1,260,186.58 = 209,038.03/x - Step 3: Cross multiply
840,124.21x = 1,260,186.58 × 209,038.03 - Step 4: Simplify right side
840,124.21x = 263,426,913,814.71 - Step 5: Solve for x
x = 263,426,913,814.71/840,124.21 - Step 6: Final answer
x = 313,557.10
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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.