Finding the Fourth Proportional to 569,727.18, 786,237.21 and 311,628.38
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Solution
The fourth proportional to 569,727.18, 786,237.21 and 311,628.38 is: 430,054.65
Step by Step Solution
- Step 1: Write the proportion equation
569,727.18 : 786,237.21 = 311,628.38 : x - Step 2: Convert to fraction form
569,727.18/786,237.21 = 311,628.38/x - Step 3: Cross multiply
569,727.18x = 786,237.21 × 311,628.38 - Step 4: Simplify right side
569,727.18x = 245,013,824,116.83 - Step 5: Solve for x
x = 245,013,824,116.83/569,727.18 - Step 6: Final answer
x = 430,054.65
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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.