Finding the Fourth Proportional to 472,765.68, 708,105.96 and 390,781.68
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Solution
The fourth proportional to 472,765.68, 708,105.96 and 390,781.68 is: 585,310.75
Step by Step Solution
- Step 1: Write the proportion equation
472,765.68 : 708,105.96 = 390,781.68 : x - Step 2: Convert to fraction form
472,765.68/708,105.96 = 390,781.68/x - Step 3: Cross multiply
472,765.68x = 708,105.96 × 390,781.68 - Step 4: Simplify right side
472,765.68x = 276,714,836,666.81 - Step 5: Solve for x
x = 276,714,836,666.81/472,765.68 - Step 6: Final answer
x = 585,310.75
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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.