Finding the Fourth Proportional to 752,988.08, 1,122,839.74 and 648,478.64
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Solution
The fourth proportional to 752,988.08, 1,122,839.74 and 648,478.64 is: 966,997.50
Step by Step Solution
- Step 1: Write the proportion equation
752,988.08 : 1,122,839.74 = 648,478.64 : x - Step 2: Convert to fraction form
752,988.08/1,122,839.74 = 648,478.64/x - Step 3: Cross multiply
752,988.08x = 1,122,839.74 × 648,478.64 - Step 4: Simplify right side
752,988.08x = 728,137,587,533.15 - Step 5: Solve for x
x = 728,137,587,533.15/752,988.08 - Step 6: Final answer
x = 966,997.50
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.