Finding the Fourth Proportional to 1,426,421.60, 2,139,729.60 and 453,708.80
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Solution
The fourth proportional to 1,426,421.60, 2,139,729.60 and 453,708.80 is: 680,594.12
Step by Step Solution
- Step 1: Write the proportion equation
1,426,421.60 : 2,139,729.60 = 453,708.80 : x - Step 2: Convert to fraction form
1,426,421.60/2,139,729.60 = 453,708.80/x - Step 3: Cross multiply
1,426,421.60x = 2,139,729.60 × 453,708.80 - Step 4: Simplify right side
1,426,421.60x = 970,814,149,140.48 - Step 5: Solve for x
x = 970,814,149,140.48/1,426,421.60 - Step 6: Final answer
x = 680,594.12
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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.