Finding the Fourth Proportional to 648,118.20, 972,177.30 and 396,175.80
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Solution
The fourth proportional to 648,118.20, 972,177.30 and 396,175.80 is: 594,263.70
Step by Step Solution
- Step 1: Write the proportion equation
648,118.20 : 972,177.30 = 396,175.80 : x - Step 2: Convert to fraction form
648,118.20/972,177.30 = 396,175.80/x - Step 3: Cross multiply
648,118.20x = 972,177.30 × 396,175.80 - Step 4: Simplify right side
648,118.20x = 385,153,119,569.34 - Step 5: Solve for x
x = 385,153,119,569.34/648,118.20 - Step 6: Final answer
x = 594,263.70
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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.