Finding the Fourth Proportional to 878,253.84, 1,212,013.80 and 533,971.44
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Solution
The fourth proportional to 878,253.84, 1,212,013.80 and 533,971.44 is: 736,894.88
Step by Step Solution
- Step 1: Write the proportion equation
878,253.84 : 1,212,013.80 = 533,971.44 : x - Step 2: Convert to fraction form
878,253.84/1,212,013.80 = 533,971.44/x - Step 3: Cross multiply
878,253.84x = 1,212,013.80 × 533,971.44 - Step 4: Simplify right side
878,253.84x = 647,180,754,085.87 - Step 5: Solve for x
x = 647,180,754,085.87/878,253.84 - Step 6: Final answer
x = 736,894.88
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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.