Finding the Fourth Proportional to 498,156.68, 687,447.61 and 283,291.83
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Solution
The fourth proportional to 498,156.68, 687,447.61 and 283,291.83 is: 390,937.83
Step by Step Solution
- Step 1: Write the proportion equation
498,156.68 : 687,447.61 = 283,291.83 : x - Step 2: Convert to fraction form
498,156.68/687,447.61 = 283,291.83/x - Step 3: Cross multiply
498,156.68x = 687,447.61 × 283,291.83 - Step 4: Simplify right side
498,156.68x = 194,748,290,757.80 - Step 5: Solve for x
x = 194,748,290,757.80/498,156.68 - Step 6: Final answer
x = 390,937.83
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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.