Finding the Fourth Proportional to 472,439.20, 651,966.48 and 257,579.68
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Solution
The fourth proportional to 472,439.20, 651,966.48 and 257,579.68 is: 355,460.17
Step by Step Solution
- Step 1: Write the proportion equation
472,439.20 : 651,966.48 = 257,579.68 : x - Step 2: Convert to fraction form
472,439.20/651,966.48 = 257,579.68/x - Step 3: Cross multiply
472,439.20x = 651,966.48 × 257,579.68 - Step 4: Simplify right side
472,439.20x = 167,933,317,289.13 - Step 5: Solve for x
x = 167,933,317,289.13/472,439.20 - Step 6: Final answer
x = 355,460.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.