Finding the Fourth Proportional to 724,865.68, 1,000,342.74 and 402,600.25
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Solution
The fourth proportional to 724,865.68, 1,000,342.74 and 402,600.25 is: 555,603.95
Step by Step Solution
- Step 1: Write the proportion equation
724,865.68 : 1,000,342.74 = 402,600.25 : x - Step 2: Convert to fraction form
724,865.68/1,000,342.74 = 402,600.25/x - Step 3: Cross multiply
724,865.68x = 1,000,342.74 × 402,600.25 - Step 4: Simplify right side
724,865.68x = 402,738,237,209.69 - Step 5: Solve for x
x = 402,738,237,209.69/724,865.68 - Step 6: Final answer
x = 555,603.95
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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.