Finding the Fourth Proportional to 1,289,617.20, 1,934,425.80 and 1,165,614.30
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Solution
The fourth proportional to 1,289,617.20, 1,934,425.80 and 1,165,614.30 is: 1,748,421.45
Step by Step Solution
- Step 1: Write the proportion equation
1,289,617.20 : 1,934,425.80 = 1,165,614.30 : x - Step 2: Convert to fraction form
1,289,617.20/1,934,425.80 = 1,165,614.30/x - Step 3: Cross multiply
1,289,617.20x = 1,934,425.80 × 1,165,614.30 - Step 4: Simplify right side
1,289,617.20x = 2,254,794,374,768.94 - Step 5: Solve for x
x = 2,254,794,374,768.94/1,289,617.20 - Step 6: Final answer
x = 1,748,421.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.