Finding the Fourth Proportional to 779,730.50, 1,076,028.36 and 440,220.62
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Solution
The fourth proportional to 779,730.50, 1,076,028.36 and 440,220.62 is: 607,504.61
Step by Step Solution
- Step 1: Write the proportion equation
779,730.50 : 1,076,028.36 = 440,220.62 : x - Step 2: Convert to fraction form
779,730.50/1,076,028.36 = 440,220.62/x - Step 3: Cross multiply
779,730.50x = 1,076,028.36 × 440,220.62 - Step 4: Simplify right side
779,730.50x = 473,689,871,776.78 - Step 5: Solve for x
x = 473,689,871,776.78/779,730.50 - Step 6: Final answer
x = 607,504.61
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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.