Finding the Fourth Proportional to 552,048.21, 761,829.71 and 310,328.66
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Solution
The fourth proportional to 552,048.21, 761,829.71 and 310,328.66 is: 428,255.33
Step by Step Solution
- Step 1: Write the proportion equation
552,048.21 : 761,829.71 = 310,328.66 : x - Step 2: Convert to fraction form
552,048.21/761,829.71 = 310,328.66/x - Step 3: Cross multiply
552,048.21x = 761,829.71 × 310,328.66 - Step 4: Simplify right side
552,048.21x = 236,417,587,691.70 - Step 5: Solve for x
x = 236,417,587,691.70/552,048.21 - Step 6: Final answer
x = 428,255.33
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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.