Finding the Fourth Proportional to 478,779.96, 718,275.12 and 141,847.08
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Solution
The fourth proportional to 478,779.96, 718,275.12 and 141,847.08 is: 212,801.78
Step by Step Solution
- Step 1: Write the proportion equation
478,779.96 : 718,275.12 = 141,847.08 : x - Step 2: Convert to fraction form
478,779.96/718,275.12 = 141,847.08/x - Step 3: Cross multiply
478,779.96x = 718,275.12 × 141,847.08 - Step 4: Simplify right side
478,779.96x = 101,885,228,408.65 - Step 5: Solve for x
x = 101,885,228,408.65/478,779.96 - Step 6: Final answer
x = 212,801.78
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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.