Finding the Fourth Proportional to 1,484,122.60, 2,227,412.70 and 686,631.40
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Solution
The fourth proportional to 1,484,122.60, 2,227,412.70 and 686,631.40 is: 1,030,515.61
Step by Step Solution
- Step 1: Write the proportion equation
1,484,122.60 : 2,227,412.70 = 686,631.40 : x - Step 2: Convert to fraction form
1,484,122.60/2,227,412.70 = 686,631.40/x - Step 3: Cross multiply
1,484,122.60x = 2,227,412.70 × 686,631.40 - Step 4: Simplify right side
1,484,122.60x = 1,529,411,500,578.78 - Step 5: Solve for x
x = 1,529,411,500,578.78/1,484,122.60 - Step 6: Final answer
x = 1,030,515.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.