Finding the Fourth Proportional to 487,569.70, 731,354.55 and 408,837.70
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Solution
The fourth proportional to 487,569.70, 731,354.55 and 408,837.70 is: 613,256.55
Step by Step Solution
- Step 1: Write the proportion equation
487,569.70 : 731,354.55 = 408,837.70 : x - Step 2: Convert to fraction form
487,569.70/731,354.55 = 408,837.70/x - Step 3: Cross multiply
487,569.70x = 731,354.55 × 408,837.70 - Step 4: Simplify right side
487,569.70x = 299,005,312,106.54 - Step 5: Solve for x
x = 299,005,312,106.54/487,569.70 - Step 6: Final answer
x = 613,256.55
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1.5x scale
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.