Finding the Fourth Proportional to 1,299,721.68, 1,949,616 and 616,448.88
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Solution
The fourth proportional to 1,299,721.68, 1,949,616 and 616,448.88 is: 924,689.20
Step by Step Solution
- Step 1: Write the proportion equation
1,299,721.68 : 1,949,616 = 616,448.88 : x - Step 2: Convert to fraction form
1,299,721.68/1,949,616 = 616,448.88/x - Step 3: Cross multiply
1,299,721.68x = 1,949,616 × 616,448.88 - Step 4: Simplify right side
1,299,721.68x = 1,201,838,599,630.08 - Step 5: Solve for x
x = 1,201,838,599,630.08/1,299,721.68 - Step 6: Final answer
x = 924,689.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.