Finding the Fourth Proportional to 2,748,389.18, 4,122,605.65 and 1,128,740.72
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Solution
The fourth proportional to 2,748,389.18, 4,122,605.65 and 1,128,740.72 is: 1,693,120.07
Step by Step Solution
- Step 1: Write the proportion equation
2,748,389.18 : 4,122,605.65 = 1,128,740.72 : x - Step 2: Convert to fraction form
2,748,389.18/4,122,605.65 = 1,128,740.72/x - Step 3: Cross multiply
2,748,389.18x = 4,122,605.65 × 1,128,740.72 - Step 4: Simplify right side
2,748,389.18x = 4,653,352,869,657.07 - Step 5: Solve for x
x = 4,653,352,869,657.07/2,748,389.18 - Step 6: Final answer
x = 1,693,120.07
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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.