Finding the Fourth Proportional to 430,319.41, 644,888.60 and 272,264.92
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Solution
The fourth proportional to 430,319.41, 644,888.60 and 272,264.92 is: 408,023.75
Step by Step Solution
- Step 1: Write the proportion equation
430,319.41 : 644,888.60 = 272,264.92 : x - Step 2: Convert to fraction form
430,319.41/644,888.60 = 272,264.92/x - Step 3: Cross multiply
430,319.41x = 644,888.60 × 272,264.92 - Step 4: Simplify right side
430,319.41x = 175,580,538,502.14 - Step 5: Solve for x
x = 175,580,538,502.14/430,319.41 - Step 6: Final answer
x = 408,023.75
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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.