Finding the Fourth Proportional to 1,980,457.40, 2,732,952.48 and 1,121,195.90
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Solution
The fourth proportional to 1,980,457.40, 2,732,952.48 and 1,121,195.90 is: 1,547,205.77
Step by Step Solution
- Step 1: Write the proportion equation
1,980,457.40 : 2,732,952.48 = 1,121,195.90 : x - Step 2: Convert to fraction form
1,980,457.40/2,732,952.48 = 1,121,195.90/x - Step 3: Cross multiply
1,980,457.40x = 2,732,952.48 × 1,121,195.90 - Step 4: Simplify right side
1,980,457.40x = 3,064,175,115,470.83 - Step 5: Solve for x
x = 3,064,175,115,470.83/1,980,457.40 - Step 6: Final answer
x = 1,547,205.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.