Finding the Fourth Proportional to 2,145,039.03, 2,960,178.21 and 1,178,191.98
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Solution
The fourth proportional to 2,145,039.03, 2,960,178.21 and 1,178,191.98 is: 1,625,918.31
Step by Step Solution
- Step 1: Write the proportion equation
2,145,039.03 : 2,960,178.21 = 1,178,191.98 : x - Step 2: Convert to fraction form
2,145,039.03/2,960,178.21 = 1,178,191.98/x - Step 3: Cross multiply
2,145,039.03x = 2,960,178.21 × 1,178,191.98 - Step 4: Simplify right side
2,145,039.03x = 3,487,658,226,392.76 - Step 5: Solve for x
x = 3,487,658,226,392.76/2,145,039.03 - Step 6: Final answer
x = 1,625,918.31
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1.5x scale
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.