Finding the Fourth Proportional to 2,378,818.10, 3,282,772.12 and 1,291,089.65
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Solution
The fourth proportional to 2,378,818.10, 3,282,772.12 and 1,291,089.65 is: 1,781,705.41
Step by Step Solution
- Step 1: Write the proportion equation
2,378,818.10 : 3,282,772.12 = 1,291,089.65 : x - Step 2: Convert to fraction form
2,378,818.10/3,282,772.12 = 1,291,089.65/x - Step 3: Cross multiply
2,378,818.10x = 3,282,772.12 × 1,291,089.65 - Step 4: Simplify right side
2,378,818.10x = 4,238,353,087,798.97 - Step 5: Solve for x
x = 4,238,353,087,798.97/2,378,818.10 - Step 6: Final answer
x = 1,781,705.41
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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.