Finding the Fourth Proportional to 888,679.20, 1,226,372.40 and 480,780
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Solution
The fourth proportional to 888,679.20, 1,226,372.40 and 480,780 is: 663,473.75
Step by Step Solution
- Step 1: Write the proportion equation
888,679.20 : 1,226,372.40 = 480,780 : x - Step 2: Convert to fraction form
888,679.20/1,226,372.40 = 480,780/x - Step 3: Cross multiply
888,679.20x = 1,226,372.40 × 480,780 - Step 4: Simplify right side
888,679.20x = 589,615,322,472 - Step 5: Solve for x
x = 589,615,322,472/888,679.20 - Step 6: Final answer
x = 663,473.75
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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.