Finding the Fourth Proportional to 608,613.60, 912,920.40 and 514,135.20
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Solution
The fourth proportional to 608,613.60, 912,920.40 and 514,135.20 is: 771,202.80
Step by Step Solution
- Step 1: Write the proportion equation
608,613.60 : 912,920.40 = 514,135.20 : x - Step 2: Convert to fraction form
608,613.60/912,920.40 = 514,135.20/x - Step 3: Cross multiply
608,613.60x = 912,920.40 × 514,135.20 - Step 4: Simplify right side
608,613.60x = 469,364,512,438.08 - Step 5: Solve for x
x = 469,364,512,438.08/608,613.60 - Step 6: Final answer
x = 771,202.80
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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.