Finding the Fourth Proportional to 542,430.78, 813,348.09 and 430,825.74
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Solution
The fourth proportional to 542,430.78, 813,348.09 and 430,825.74 is: 646,001.86
Step by Step Solution
- Step 1: Write the proportion equation
542,430.78 : 813,348.09 = 430,825.74 : x - Step 2: Convert to fraction form
542,430.78/813,348.09 = 430,825.74/x - Step 3: Cross multiply
542,430.78x = 813,348.09 × 430,825.74 - Step 4: Simplify right side
542,430.78x = 350,411,292,751.84 - Step 5: Solve for x
x = 350,411,292,751.84/542,430.78 - Step 6: Final answer
x = 646,001.86
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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.