Finding the Fourth Proportional to 1,720,374.80, 2,579,687.40 and 1,010,620.40
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Solution
The fourth proportional to 1,720,374.80, 2,579,687.40 and 1,010,620.40 is: 1,515,416.71
Step by Step Solution
- Step 1: Write the proportion equation
1,720,374.80 : 2,579,687.40 = 1,010,620.40 : x - Step 2: Convert to fraction form
1,720,374.80/2,579,687.40 = 1,010,620.40/x - Step 3: Cross multiply
1,720,374.80x = 2,579,687.40 × 1,010,620.40 - Step 4: Simplify right side
1,720,374.80x = 2,607,084,712,062.96 - Step 5: Solve for x
x = 2,607,084,712,062.96/1,720,374.80 - Step 6: Final answer
x = 1,515,416.71
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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.