Finding the Fourth Proportional to 861,739.80, 1,292,609.70 and 488,491.80
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Solution
The fourth proportional to 861,739.80, 1,292,609.70 and 488,491.80 is: 732,737.70
Step by Step Solution
- Step 1: Write the proportion equation
861,739.80 : 1,292,609.70 = 488,491.80 : x - Step 2: Convert to fraction form
861,739.80/1,292,609.70 = 488,491.80/x - Step 3: Cross multiply
861,739.80x = 1,292,609.70 × 488,491.80 - Step 4: Simplify right side
861,739.80x = 631,429,239,050.46 - Step 5: Solve for x
x = 631,429,239,050.46/861,739.80 - Step 6: Final answer
x = 732,737.70
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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.