Finding the Fourth Proportional to 1,939,124.79, 2,675,905.86 and 1,111,605.08
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Solution
The fourth proportional to 1,939,124.79, 2,675,905.86 and 1,111,605.08 is: 1,533,965.51
Step by Step Solution
- Step 1: Write the proportion equation
1,939,124.79 : 2,675,905.86 = 1,111,605.08 : x - Step 2: Convert to fraction form
1,939,124.79/2,675,905.86 = 1,111,605.08/x - Step 3: Cross multiply
1,939,124.79x = 2,675,905.86 × 1,111,605.08 - Step 4: Simplify right side
1,939,124.79x = 2,974,550,547,577.77 - Step 5: Solve for x
x = 2,974,550,547,577.77/1,939,124.79 - Step 6: Final answer
x = 1,533,965.51
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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.