Finding the Fourth Proportional to 4,238,771.20, 6,358,545.60 and 1,398,889.60
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Solution
The fourth proportional to 4,238,771.20, 6,358,545.60 and 1,398,889.60 is: 2,098,462.71
Step by Step Solution
- Step 1: Write the proportion equation
4,238,771.20 : 6,358,545.60 = 1,398,889.60 : x - Step 2: Convert to fraction form
4,238,771.20/6,358,545.60 = 1,398,889.60/x - Step 3: Cross multiply
4,238,771.20x = 6,358,545.60 × 1,398,889.60 - Step 4: Simplify right side
4,238,771.20x = 8,894,903,310,965.76 - Step 5: Solve for x
x = 8,894,903,310,965.76/4,238,771.20 - Step 6: Final answer
x = 2,098,462.71
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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.