Finding the Fourth Proportional to 912,863.91, 1,368,749.07 and 433,211.07
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Solution
The fourth proportional to 912,863.91, 1,368,749.07 and 433,211.07 is: 649,557.12
Step by Step Solution
- Step 1: Write the proportion equation
912,863.91 : 1,368,749.07 = 433,211.07 : x - Step 2: Convert to fraction form
912,863.91/1,368,749.07 = 433,211.07/x - Step 3: Cross multiply
912,863.91x = 1,368,749.07 × 433,211.07 - Step 4: Simplify right side
912,863.91x = 592,957,249,176.21 - Step 5: Solve for x
x = 592,957,249,176.21/912,863.91 - Step 6: Final answer
x = 649,557.12
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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.