Finding the Fourth Proportional to 840,689.84, 1,261,350.24 and 503,970.42
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Solution
The fourth proportional to 840,689.84, 1,261,350.24 and 503,970.42 is: 756,144.75
Step by Step Solution
- Step 1: Write the proportion equation
840,689.84 : 1,261,350.24 = 503,970.42 : x - Step 2: Convert to fraction form
840,689.84/1,261,350.24 = 503,970.42/x - Step 3: Cross multiply
840,689.84x = 1,261,350.24 × 503,970.42 - Step 4: Simplify right side
840,689.84x = 635,683,210,219.90 - Step 5: Solve for x
x = 635,683,210,219.90/840,689.84 - Step 6: Final answer
x = 756,144.75
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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.