Finding the Fourth Proportional to 689,920.08, 1,034,884.68 and 240,639.28
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Solution
The fourth proportional to 689,920.08, 1,034,884.68 and 240,639.28 is: 360,960.51
Step by Step Solution
- Step 1: Write the proportion equation
689,920.08 : 1,034,884.68 = 240,639.28 : x - Step 2: Convert to fraction form
689,920.08/1,034,884.68 = 240,639.28/x - Step 3: Cross multiply
689,920.08x = 1,034,884.68 × 240,639.28 - Step 4: Simplify right side
689,920.08x = 249,033,904,278.23 - Step 5: Solve for x
x = 249,033,904,278.23/689,920.08 - Step 6: Final answer
x = 360,960.51
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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.