Finding the Fourth Proportional to 769,390.41, 1,062,055.08 and 688,675.53
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Solution
The fourth proportional to 769,390.41, 1,062,055.08 and 688,675.53 is: 950,637.46
Step by Step Solution
- Step 1: Write the proportion equation
769,390.41 : 1,062,055.08 = 688,675.53 : x - Step 2: Convert to fraction form
769,390.41/1,062,055.08 = 688,675.53/x - Step 3: Cross multiply
769,390.41x = 1,062,055.08 × 688,675.53 - Step 4: Simplify right side
769,390.41x = 731,411,345,108.19 - Step 5: Solve for x
x = 731,411,345,108.19/769,390.41 - Step 6: Final answer
x = 950,637.46
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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.