Finding the Fourth Proportional to 2,166,220.08, 2,988,985.32 and 1,248,320.52
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Solution
The fourth proportional to 2,166,220.08, 2,988,985.32 and 1,248,320.52 is: 1,722,452.74
Step by Step Solution
- Step 1: Write the proportion equation
2,166,220.08 : 2,988,985.32 = 1,248,320.52 : x - Step 2: Convert to fraction form
2,166,220.08/2,988,985.32 = 1,248,320.52/x - Step 3: Cross multiply
2,166,220.08x = 2,988,985.32 × 1,248,320.52 - Step 4: Simplify right side
2,166,220.08x = 3,731,211,708,934.77 - Step 5: Solve for x
x = 3,731,211,708,934.77/2,166,220.08 - Step 6: Final answer
x = 1,722,452.74
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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.