Finding the Fourth Proportional to 1,820,929.65, 2,512,882.53 and 1,005,133.12
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Solution
The fourth proportional to 1,820,929.65, 2,512,882.53 and 1,005,133.12 is: 1,387,083.49
Step by Step Solution
- Step 1: Write the proportion equation
1,820,929.65 : 2,512,882.53 = 1,005,133.12 : x - Step 2: Convert to fraction form
1,820,929.65/2,512,882.53 = 1,005,133.12/x - Step 3: Cross multiply
1,820,929.65x = 2,512,882.53 × 1,005,133.12 - Step 4: Simplify right side
1,820,929.65x = 2,525,781,457,572.39 - Step 5: Solve for x
x = 2,525,781,457,572.39/1,820,929.65 - Step 6: Final answer
x = 1,387,083.49
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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.