Finding the Fourth Proportional to 1,688,007.40, 2,328,973.36 and 999,376.99
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Solution
The fourth proportional to 1,688,007.40, 2,328,973.36 and 999,376.99 is: 1,378,857.93
Step by Step Solution
- Step 1: Write the proportion equation
1,688,007.40 : 2,328,973.36 = 999,376.99 : x - Step 2: Convert to fraction form
1,688,007.40/2,328,973.36 = 999,376.99/x - Step 3: Cross multiply
1,688,007.40x = 2,328,973.36 × 999,376.99 - Step 4: Simplify right side
1,688,007.40x = 2,327,522,377,986.11 - Step 5: Solve for x
x = 2,327,522,377,986.11/1,688,007.40 - Step 6: Final answer
x = 1,378,857.93
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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.