Finding the Fourth Proportional to 1,402,397.36, 2,102,875.72 and 643,585.68
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Solution
The fourth proportional to 1,402,397.36, 2,102,875.72 and 643,585.68 is: 965,047.95
Step by Step Solution
- Step 1: Write the proportion equation
1,402,397.36 : 2,102,875.72 = 643,585.68 : x - Step 2: Convert to fraction form
1,402,397.36/2,102,875.72 = 643,585.68/x - Step 3: Cross multiply
1,402,397.36x = 2,102,875.72 × 643,585.68 - Step 4: Simplify right side
1,402,397.36x = 1,353,380,700,211.69 - Step 5: Solve for x
x = 1,353,380,700,211.69/1,402,397.36 - Step 6: Final answer
x = 965,047.95
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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.