Finding the Fourth Proportional to 689,705.78, 1,034,546.58 and 310,358.02
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Solution
The fourth proportional to 689,705.78, 1,034,546.58 and 310,358.02 is: 465,531.59
Step by Step Solution
- Step 1: Write the proportion equation
689,705.78 : 1,034,546.58 = 310,358.02 : x - Step 2: Convert to fraction form
689,705.78/1,034,546.58 = 310,358.02/x - Step 3: Cross multiply
689,705.78x = 1,034,546.58 × 310,358.02 - Step 4: Simplify right side
689,705.78x = 321,079,826,744.05 - Step 5: Solve for x
x = 321,079,826,744.05/689,705.78 - Step 6: Final answer
x = 465,531.59
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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.