Finding the Fourth Proportional to 668,037.28, 921,888.08 and 362,112.48
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Solution
The fourth proportional to 668,037.28, 921,888.08 and 362,112.48 is: 499,713.40
Step by Step Solution
- Step 1: Write the proportion equation
668,037.28 : 921,888.08 = 362,112.48 : x - Step 2: Convert to fraction form
668,037.28/921,888.08 = 362,112.48/x - Step 3: Cross multiply
668,037.28x = 921,888.08 × 362,112.48 - Step 4: Simplify right side
668,037.28x = 333,827,178,931.24 - Step 5: Solve for x
x = 333,827,178,931.24/668,037.28 - Step 6: Final answer
x = 499,713.40
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1.5x scale
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.