Finding the Fourth Proportional to 938,536.84, 1,294,492.80 and 616,129.30
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Solution
The fourth proportional to 938,536.84, 1,294,492.80 and 616,129.30 is: 849,806.75
Step by Step Solution
- Step 1: Write the proportion equation
938,536.84 : 1,294,492.80 = 616,129.30 : x - Step 2: Convert to fraction form
938,536.84/1,294,492.80 = 616,129.30/x - Step 3: Cross multiply
938,536.84x = 1,294,492.80 × 616,129.30 - Step 4: Simplify right side
938,536.84x = 797,574,942,719.04 - Step 5: Solve for x
x = 797,574,942,719.04/938,536.84 - Step 6: Final answer
x = 849,806.75
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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.