Finding the Fourth Proportional to 1,762,108.90, 2,643,163.35 and 1,671,129.70
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Solution
The fourth proportional to 1,762,108.90, 2,643,163.35 and 1,671,129.70 is: 2,506,694.55
Step by Step Solution
- Step 1: Write the proportion equation
1,762,108.90 : 2,643,163.35 = 1,671,129.70 : x - Step 2: Convert to fraction form
1,762,108.90/2,643,163.35 = 1,671,129.70/x - Step 3: Cross multiply
1,762,108.90x = 2,643,163.35 × 1,671,129.70 - Step 4: Simplify right side
1,762,108.90x = 4,417,068,776,136.50 - Step 5: Solve for x
x = 4,417,068,776,136.50/1,762,108.90 - Step 6: Final answer
x = 2,506,694.55
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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.