Finding the Fourth Proportional to 687,988.14, 1,032,106.20 and 283,108.84
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Solution
The fourth proportional to 687,988.14, 1,032,106.20 and 283,108.84 is: 424,714.28
Step by Step Solution
- Step 1: Write the proportion equation
687,988.14 : 1,032,106.20 = 283,108.84 : x - Step 2: Convert to fraction form
687,988.14/1,032,106.20 = 283,108.84/x - Step 3: Cross multiply
687,988.14x = 1,032,106.20 × 283,108.84 - Step 4: Simplify right side
687,988.14x = 292,198,389,038.81 - Step 5: Solve for x
x = 292,198,389,038.81/687,988.14 - Step 6: Final answer
x = 424,714.28
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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.