Finding the Fourth Proportional to 1,385,805.90, 2,079,400.05 and 787,226.70
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Solution
The fourth proportional to 1,385,805.90, 2,079,400.05 and 787,226.70 is: 1,181,232.70
Step by Step Solution
- Step 1: Write the proportion equation
1,385,805.90 : 2,079,400.05 = 787,226.70 : x - Step 2: Convert to fraction form
1,385,805.90/2,079,400.05 = 787,226.70/x - Step 3: Cross multiply
1,385,805.90x = 2,079,400.05 × 787,226.70 - Step 4: Simplify right side
1,385,805.90x = 1,636,959,239,341.34 - Step 5: Solve for x
x = 1,636,959,239,341.34/1,385,805.90 - Step 6: Final answer
x = 1,181,232.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.