Finding the Fourth Proportional to 648,129.70, 972,194.55 and 530,031.70
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Solution
The fourth proportional to 648,129.70, 972,194.55 and 530,031.70 is: 795,047.55
Step by Step Solution
- Step 1: Write the proportion equation
648,129.70 : 972,194.55 = 530,031.70 : x - Step 2: Convert to fraction form
648,129.70/972,194.55 = 530,031.70/x - Step 3: Cross multiply
648,129.70x = 972,194.55 × 530,031.70 - Step 4: Simplify right side
648,129.70x = 515,293,930,067.24 - Step 5: Solve for x
x = 515,293,930,067.24/648,129.70 - Step 6: Final answer
x = 795,047.55
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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.