Finding the Fourth Proportional to 2,145,671.06, 2,961,013.64 and 1,178,780.54
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Solution
The fourth proportional to 2,145,671.06, 2,961,013.64 and 1,178,780.54 is: 1,626,710.31
Step by Step Solution
- Step 1: Write the proportion equation
2,145,671.06 : 2,961,013.64 = 1,178,780.54 : x - Step 2: Convert to fraction form
2,145,671.06/2,961,013.64 = 1,178,780.54/x - Step 3: Cross multiply
2,145,671.06x = 2,961,013.64 × 1,178,780.54 - Step 4: Simplify right side
2,145,671.06x = 3,490,385,236,807.59 - Step 5: Solve for x
x = 3,490,385,236,807.59/2,145,671.06 - Step 6: Final answer
x = 1,626,710.31
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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.