Finding the Fourth Proportional to 3,462,428.62, 4,778,398.76 and 1,913,657.02
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Solution
The fourth proportional to 3,462,428.62, 4,778,398.76 and 1,913,657.02 is: 2,640,983.34
Step by Step Solution
- Step 1: Write the proportion equation
3,462,428.62 : 4,778,398.76 = 1,913,657.02 : x - Step 2: Convert to fraction form
3,462,428.62/4,778,398.76 = 1,913,657.02/x - Step 3: Cross multiply
3,462,428.62x = 4,778,398.76 × 1,913,657.02 - Step 4: Simplify right side
3,462,428.62x = 9,144,216,297,973.02 - Step 5: Solve for x
x = 9,144,216,297,973.02/3,462,428.62 - Step 6: Final answer
x = 2,640,983.34
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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.