Finding the Fourth Proportional to 2,911,343.16, 4,017,669.58 and 1,688,373.82
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Solution
The fourth proportional to 2,911,343.16, 4,017,669.58 and 1,688,373.82 is: 2,329,965.17
Step by Step Solution
- Step 1: Write the proportion equation
2,911,343.16 : 4,017,669.58 = 1,688,373.82 : x - Step 2: Convert to fraction form
2,911,343.16/4,017,669.58 = 1,688,373.82/x - Step 3: Cross multiply
2,911,343.16x = 4,017,669.58 × 1,688,373.82 - Step 4: Simplify right side
2,911,343.16x = 6,783,328,148,163.50 - Step 5: Solve for x
x = 6,783,328,148,163.50/2,911,343.16 - Step 6: Final answer
x = 2,329,965.17
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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.