Finding the Fourth Proportional to 708,363.09, 977,563.84 and 402,433.89
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Solution
The fourth proportional to 708,363.09, 977,563.84 and 402,433.89 is: 555,371.70
Step by Step Solution
- Step 1: Write the proportion equation
708,363.09 : 977,563.84 = 402,433.89 : x - Step 2: Convert to fraction form
708,363.09/977,563.84 = 402,433.89/x - Step 3: Cross multiply
708,363.09x = 977,563.84 × 402,433.89 - Step 4: Simplify right side
708,363.09x = 393,404,814,937.15 - Step 5: Solve for x
x = 393,404,814,937.15/708,363.09 - Step 6: Final answer
x = 555,371.70
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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.