Finding the Fourth Proportional to 1,076,522.40, 1,484,943.99 and 640,647.53
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Solution
The fourth proportional to 1,076,522.40, 1,484,943.99 and 640,647.53 is: 883,702.65
Step by Step Solution
- Step 1: Write the proportion equation
1,076,522.40 : 1,484,943.99 = 640,647.53 : x - Step 2: Convert to fraction form
1,076,522.40/1,484,943.99 = 640,647.53/x - Step 3: Cross multiply
1,076,522.40x = 1,484,943.99 × 640,647.53 - Step 4: Simplify right side
1,076,522.40x = 951,325,698,726.88 - Step 5: Solve for x
x = 951,325,698,726.88/1,076,522.40 - Step 6: Final answer
x = 883,702.65
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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.