Finding the Fourth Proportional to 648,304.80, 971,290.80 and 554,992.80
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Solution
The fourth proportional to 648,304.80, 971,290.80 and 554,992.80 is: 831,490.68
Step by Step Solution
- Step 1: Write the proportion equation
648,304.80 : 971,290.80 = 554,992.80 : x - Step 2: Convert to fraction form
648,304.80/971,290.80 = 554,992.80/x - Step 3: Cross multiply
648,304.80x = 971,290.80 × 554,992.80 - Step 4: Simplify right side
648,304.80x = 539,059,400,706.24 - Step 5: Solve for x
x = 539,059,400,706.24/648,304.80 - Step 6: Final answer
x = 831,490.68
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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.