Finding the Fourth Proportional to 887,613.70, 1,331,420.55 and 887,613.70
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Solution
The fourth proportional to 887,613.70, 1,331,420.55 and 887,613.70 is: 1,331,420.55
Step by Step Solution
- Step 1: Write the proportion equation
887,613.70 : 1,331,420.55 = 887,613.70 : x - Step 2: Convert to fraction form
887,613.70/1,331,420.55 = 887,613.70/x - Step 3: Cross multiply
887,613.70x = 1,331,420.55 × 887,613.70 - Step 4: Simplify right side
887,613.70x = 1,181,787,120,641.53 - Step 5: Solve for x
x = 1,181,787,120,641.53/887,613.70 - Step 6: Final answer
x = 1,331,420.55
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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.