Finding the Fourth Proportional to 525,306.12, 724,949.58 and 321,293.04
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Solution
The fourth proportional to 525,306.12, 724,949.58 and 321,293.04 is: 443,400.99
Step by Step Solution
- Step 1: Write the proportion equation
525,306.12 : 724,949.58 = 321,293.04 : x - Step 2: Convert to fraction form
525,306.12/724,949.58 = 321,293.04/x - Step 3: Cross multiply
525,306.12x = 724,949.58 × 321,293.04 - Step 4: Simplify right side
525,306.12x = 232,921,254,404.92 - Step 5: Solve for x
x = 232,921,254,404.92/525,306.12 - Step 6: Final answer
x = 443,400.99
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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.