Finding the Fourth Proportional to 1,991,703.60, 2,988,430.20 and 926,197.20
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Solution
The fourth proportional to 1,991,703.60, 2,988,430.20 and 926,197.20 is: 1,389,702.61
Step by Step Solution
- Step 1: Write the proportion equation
1,991,703.60 : 2,988,430.20 = 926,197.20 : x - Step 2: Convert to fraction form
1,991,703.60/2,988,430.20 = 926,197.20/x - Step 3: Cross multiply
1,991,703.60x = 2,988,430.20 × 926,197.20 - Step 4: Simplify right side
1,991,703.60x = 2,767,875,683,635.44 - Step 5: Solve for x
x = 2,767,875,683,635.44/1,991,703.60 - Step 6: Final answer
x = 1,389,702.61
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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.