Finding the Fourth Proportional to 2,020,688.74, 2,788,550.44 and 1,377,233.02
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Solution
The fourth proportional to 2,020,688.74, 2,788,550.44 and 1,377,233.02 is: 1,900,581.55
Step by Step Solution
- Step 1: Write the proportion equation
2,020,688.74 : 2,788,550.44 = 1,377,233.02 : x - Step 2: Convert to fraction form
2,020,688.74/2,788,550.44 = 1,377,233.02/x - Step 3: Cross multiply
2,020,688.74x = 2,788,550.44 × 1,377,233.02 - Step 4: Simplify right side
2,020,688.74x = 3,840,483,743,903.53 - Step 5: Solve for x
x = 3,840,483,743,903.53/2,020,688.74 - Step 6: Final answer
x = 1,900,581.55
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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.