Finding the Fourth Proportional to 782,367.98, 1,078,607.68 and 668,865.92
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Solution
The fourth proportional to 782,367.98, 1,078,607.68 and 668,865.92 is: 922,128.63
Step by Step Solution
- Step 1: Write the proportion equation
782,367.98 : 1,078,607.68 = 668,865.92 : x - Step 2: Convert to fraction form
782,367.98/1,078,607.68 = 668,865.92/x - Step 3: Cross multiply
782,367.98x = 1,078,607.68 × 668,865.92 - Step 4: Simplify right side
782,367.98x = 721,443,911,137.06 - Step 5: Solve for x
x = 721,443,911,137.06/782,367.98 - Step 6: Final answer
x = 922,128.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.