Finding the Fourth Proportional to 669,905.30, 1,004,857.95 and 606,919.70
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Solution
The fourth proportional to 669,905.30, 1,004,857.95 and 606,919.70 is: 910,379.55
Step by Step Solution
- Step 1: Write the proportion equation
669,905.30 : 1,004,857.95 = 606,919.70 : x - Step 2: Convert to fraction form
669,905.30/1,004,857.95 = 606,919.70/x - Step 3: Cross multiply
669,905.30x = 1,004,857.95 × 606,919.70 - Step 4: Simplify right side
669,905.30x = 609,868,085,556.62 - Step 5: Solve for x
x = 609,868,085,556.62/669,905.30 - Step 6: Final answer
x = 910,379.55
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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.