Finding the Fourth Proportional to 977,319.80, 1,465,979.70 and 977,319.80
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Solution
The fourth proportional to 977,319.80, 1,465,979.70 and 977,319.80 is: 1,465,979.70
Step by Step Solution
- Step 1: Write the proportion equation
977,319.80 : 1,465,979.70 = 977,319.80 : x - Step 2: Convert to fraction form
977,319.80/1,465,979.70 = 977,319.80/x - Step 3: Cross multiply
977,319.80x = 1,465,979.70 × 977,319.80 - Step 4: Simplify right side
977,319.80x = 1,432,730,987,208.06 - Step 5: Solve for x
x = 1,432,730,987,208.06/977,319.80 - Step 6: Final answer
x = 1,465,979.70
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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.