Finding the Fourth Proportional to 840,340.98, 1,159,340.09 and 517,490.58
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Solution
The fourth proportional to 840,340.98, 1,159,340.09 and 517,490.58 is: 713,933.50
Step by Step Solution
- Step 1: Write the proportion equation
840,340.98 : 1,159,340.09 = 517,490.58 : x - Step 2: Convert to fraction form
840,340.98/1,159,340.09 = 517,490.58/x - Step 3: Cross multiply
840,340.98x = 1,159,340.09 × 517,490.58 - Step 4: Simplify right side
840,340.98x = 599,947,573,003.90 - Step 5: Solve for x
x = 599,947,573,003.90/840,340.98 - Step 6: Final answer
x = 713,933.50
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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.