Finding the Fourth Proportional to 2,748,387.68, 4,122,603.40 and 1,128,739.22
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Solution
The fourth proportional to 2,748,387.68, 4,122,603.40 and 1,128,739.22 is: 1,693,117.82
Step by Step Solution
- Step 1: Write the proportion equation
2,748,387.68 : 4,122,603.40 = 1,128,739.22 : x - Step 2: Convert to fraction form
2,748,387.68/4,122,603.40 = 1,128,739.22/x - Step 3: Cross multiply
2,748,387.68x = 4,122,603.40 × 1,128,739.22 - Step 4: Simplify right side
2,748,387.68x = 4,653,344,146,085.35 - Step 5: Solve for x
x = 4,653,344,146,085.35/2,748,387.68 - Step 6: Final answer
x = 1,693,117.82
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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.