Finding the Fourth Proportional to 991,805.80, 1,487,708.70 and 991,805.80
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Solution
The fourth proportional to 991,805.80, 1,487,708.70 and 991,805.80 is: 1,487,708.70
Step by Step Solution
- Step 1: Write the proportion equation
991,805.80 : 1,487,708.70 = 991,805.80 : x - Step 2: Convert to fraction form
991,805.80/1,487,708.70 = 991,805.80/x - Step 3: Cross multiply
991,805.80x = 1,487,708.70 × 991,805.80 - Step 4: Simplify right side
991,805.80x = 1,475,518,117,370.46 - Step 5: Solve for x
x = 1,475,518,117,370.46/991,805.80 - Step 6: Final answer
x = 1,487,708.70
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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.