Finding the Fourth Proportional to 507,134.48, 698,433.68 and 391,988.92
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Solution
The fourth proportional to 507,134.48, 698,433.68 and 391,988.92 is: 539,853.38
Step by Step Solution
- Step 1: Write the proportion equation
507,134.48 : 698,433.68 = 391,988.92 : x - Step 2: Convert to fraction form
507,134.48/698,433.68 = 391,988.92/x - Step 3: Cross multiply
507,134.48x = 698,433.68 × 391,988.92 - Step 4: Simplify right side
507,134.48x = 273,778,263,914.83 - Step 5: Solve for x
x = 273,778,263,914.83/507,134.48 - Step 6: Final answer
x = 539,853.38
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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.