Finding the Fourth Proportional to 2,056,789.12, 2,838,532.80 and 1,515,398.08
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Solution
The fourth proportional to 2,056,789.12, 2,838,532.80 and 1,515,398.08 is: 2,091,370.05
Step by Step Solution
- Step 1: Write the proportion equation
2,056,789.12 : 2,838,532.80 = 1,515,398.08 : x - Step 2: Convert to fraction form
2,056,789.12/2,838,532.80 = 1,515,398.08/x - Step 3: Cross multiply
2,056,789.12x = 2,838,532.80 × 1,515,398.08 - Step 4: Simplify right side
2,056,789.12x = 4,301,507,155,137.02 - Step 5: Solve for x
x = 4,301,507,155,137.02/2,056,789.12 - Step 6: Final answer
x = 2,091,370.05
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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.