Finding the Fourth Proportional to 840,215.07, 1,260,316.13 and 209,124.63
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Solution
The fourth proportional to 840,215.07, 1,260,316.13 and 209,124.63 is: 313,685.33
Step by Step Solution
- Step 1: Write the proportion equation
840,215.07 : 1,260,316.13 = 209,124.63 : x - Step 2: Convert to fraction form
840,215.07/1,260,316.13 = 209,124.63/x - Step 3: Cross multiply
840,215.07x = 1,260,316.13 × 209,124.63 - Step 4: Simplify right side
840,215.07x = 263,563,143,323.66 - Step 5: Solve for x
x = 263,563,143,323.66/840,215.07 - Step 6: Final answer
x = 313,685.33
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1.5x scale
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.