Finding the Fourth Proportional to 624,947.36, 862,423.06 and 338,461.70
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Solution
The fourth proportional to 624,947.36, 862,423.06 and 338,461.70 is: 467,074.82
Step by Step Solution
- Step 1: Write the proportion equation
624,947.36 : 862,423.06 = 338,461.70 : x - Step 2: Convert to fraction form
624,947.36/862,423.06 = 338,461.70/x - Step 3: Cross multiply
624,947.36x = 862,423.06 × 338,461.70 - Step 4: Simplify right side
624,947.36x = 291,897,171,956.79 - Step 5: Solve for x
x = 291,897,171,956.79/624,947.36 - Step 6: Final answer
x = 467,074.82
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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.