Finding the Fourth Proportional to 803,425.80, 1,205,138.70 and 698,449.80
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Solution
The fourth proportional to 803,425.80, 1,205,138.70 and 698,449.80 is: 1,047,674.70
Step by Step Solution
- Step 1: Write the proportion equation
803,425.80 : 1,205,138.70 = 698,449.80 : x - Step 2: Convert to fraction form
803,425.80/1,205,138.70 = 698,449.80/x - Step 3: Cross multiply
803,425.80x = 1,205,138.70 × 698,449.80 - Step 4: Simplify right side
803,425.80x = 841,728,883,987.26 - Step 5: Solve for x
x = 841,728,883,987.26/803,425.80 - Step 6: Final answer
x = 1,047,674.70
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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.