Finding the Fourth Proportional to 518,397.76, 777,479.99 and 185,973.76
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Solution
The fourth proportional to 518,397.76, 777,479.99 and 185,973.76 is: 278,918.79
Step by Step Solution
- Step 1: Write the proportion equation
518,397.76 : 777,479.99 = 185,973.76 : x - Step 2: Convert to fraction form
518,397.76/777,479.99 = 185,973.76/x - Step 3: Cross multiply
518,397.76x = 777,479.99 × 185,973.76 - Step 4: Simplify right side
518,397.76x = 144,590,877,065.06 - Step 5: Solve for x
x = 144,590,877,065.06/518,397.76 - Step 6: Final answer
x = 278,918.79
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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.