Finding the Fourth Proportional to 430,745.68, 647,298.96 and 406,289.44
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Solution
The fourth proportional to 430,745.68, 647,298.96 and 406,289.44 is: 610,547.58
Step by Step Solution
- Step 1: Write the proportion equation
430,745.68 : 647,298.96 = 406,289.44 : x - Step 2: Convert to fraction form
430,745.68/647,298.96 = 406,289.44/x - Step 3: Cross multiply
430,745.68x = 647,298.96 × 406,289.44 - Step 4: Simplify right side
430,745.68x = 262,990,731,970.98 - Step 5: Solve for x
x = 262,990,731,970.98/430,745.68 - Step 6: Final answer
x = 610,547.58
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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.