Finding the Fourth Proportional to 528,676.34, 729,574.06 and 286,958.96
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Solution
The fourth proportional to 528,676.34, 729,574.06 and 286,958.96 is: 396,003.75
Step by Step Solution
- Step 1: Write the proportion equation
528,676.34 : 729,574.06 = 286,958.96 : x - Step 2: Convert to fraction form
528,676.34/729,574.06 = 286,958.96/x - Step 3: Cross multiply
528,676.34x = 729,574.06 × 286,958.96 - Step 4: Simplify right side
528,676.34x = 209,357,813,500.58 - Step 5: Solve for x
x = 209,357,813,500.58/528,676.34 - Step 6: Final answer
x = 396,003.75
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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.