Finding the Fourth Proportional to 528,671.34, 729,567.15 and 286,953.96
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Solution
The fourth proportional to 528,671.34, 729,567.15 and 286,953.96 is: 395,996.85
Step by Step Solution
- Step 1: Write the proportion equation
528,671.34 : 729,567.15 = 286,953.96 : x - Step 2: Convert to fraction form
528,671.34/729,567.15 = 286,953.96/x - Step 3: Cross multiply
528,671.34x = 729,567.15 × 286,953.96 - Step 4: Simplify right side
528,671.34x = 209,352,182,778.41 - Step 5: Solve for x
x = 209,352,182,778.41/528,671.34 - Step 6: Final answer
x = 395,996.85
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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.