Finding the Fourth Proportional to 645,142.84, 889,856.22 and 591,605.08
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Solution
The fourth proportional to 645,142.84, 889,856.22 and 591,605.08 is: 816,010.70
Step by Step Solution
- Step 1: Write the proportion equation
645,142.84 : 889,856.22 = 591,605.08 : x - Step 2: Convert to fraction form
645,142.84/889,856.22 = 591,605.08/x - Step 3: Cross multiply
645,142.84x = 889,856.22 × 591,605.08 - Step 4: Simplify right side
645,142.84x = 526,443,460,221.60 - Step 5: Solve for x
x = 526,443,460,221.60/645,142.84 - Step 6: Final answer
x = 816,010.70
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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.