Finding the Fourth Proportional to 745,205.87, 1,114,375.21 and 553,442.42
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Solution
The fourth proportional to 745,205.87, 1,114,375.21 and 553,442.42 is: 827,613.60
Step by Step Solution
- Step 1: Write the proportion equation
745,205.87 : 1,114,375.21 = 553,442.42 : x - Step 2: Convert to fraction form
745,205.87/1,114,375.21 = 553,442.42/x - Step 3: Cross multiply
745,205.87x = 1,114,375.21 × 553,442.42 - Step 4: Simplify right side
745,205.87x = 616,742,506,054.93 - Step 5: Solve for x
x = 616,742,506,054.93/745,205.87 - Step 6: Final answer
x = 827,613.60
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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.