Finding the Fourth Proportional to 2,811,987.86, 3,881,562.19 and 1,845,431.06
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Solution
The fourth proportional to 2,811,987.86, 3,881,562.19 and 1,845,431.06 is: 2,547,363.56
Step by Step Solution
- Step 1: Write the proportion equation
2,811,987.86 : 3,881,562.19 = 1,845,431.06 : x - Step 2: Convert to fraction form
2,811,987.86/3,881,562.19 = 1,845,431.06/x - Step 3: Cross multiply
2,811,987.86x = 3,881,562.19 × 1,845,431.06 - Step 4: Simplify right side
2,811,987.86x = 7,163,155,402,726.23 - Step 5: Solve for x
x = 7,163,155,402,726.23/2,811,987.86 - Step 6: Final answer
x = 2,547,363.56
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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.