Finding the Fourth Proportional to 525,775.68, 725,569.92 and 287,311.68
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Solution
The fourth proportional to 525,775.68, 725,569.92 and 287,311.68 is: 396,489.84
Step by Step Solution
- Step 1: Write the proportion equation
525,775.68 : 725,569.92 = 287,311.68 : x - Step 2: Convert to fraction form
525,775.68/725,569.92 = 287,311.68/x - Step 3: Cross multiply
525,775.68x = 725,569.92 × 287,311.68 - Step 4: Simplify right side
525,775.68x = 208,464,712,672.67 - Step 5: Solve for x
x = 208,464,712,672.67/525,775.68 - Step 6: Final answer
x = 396,489.84
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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.