Finding the Fourth Proportional to 665,655.10, 998,482.65 and 658,656.70
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Solution
The fourth proportional to 665,655.10, 998,482.65 and 658,656.70 is: 987,985.05
Step by Step Solution
- Step 1: Write the proportion equation
665,655.10 : 998,482.65 = 658,656.70 : x - Step 2: Convert to fraction form
665,655.10/998,482.65 = 658,656.70/x - Step 3: Cross multiply
665,655.10x = 998,482.65 × 658,656.70 - Step 4: Simplify right side
665,655.10x = 657,657,287,256.26 - Step 5: Solve for x
x = 657,657,287,256.26/665,655.10 - Step 6: Final answer
x = 987,985.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.