Finding the Fourth Proportional to 497,430.29, 686,974.84 and 342,783.68
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Solution
The fourth proportional to 497,430.29, 686,974.84 and 342,783.68 is: 473,400.52
Step by Step Solution
- Step 1: Write the proportion equation
497,430.29 : 686,974.84 = 342,783.68 : x - Step 2: Convert to fraction form
497,430.29/686,974.84 = 342,783.68/x - Step 3: Cross multiply
497,430.29x = 686,974.84 × 342,783.68 - Step 4: Simplify right side
497,430.29x = 235,483,759,430.78 - Step 5: Solve for x
x = 235,483,759,430.78/497,430.29 - Step 6: Final answer
x = 473,400.52
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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.