Finding the Fourth Proportional to 542,407.70, 812,809.65 and 392,962.70
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Solution
The fourth proportional to 542,407.70, 812,809.65 and 392,962.70 is: 588,863.09
Step by Step Solution
- Step 1: Write the proportion equation
542,407.70 : 812,809.65 = 392,962.70 : x - Step 2: Convert to fraction form
542,407.70/812,809.65 = 392,962.70/x - Step 3: Cross multiply
542,407.70x = 812,809.65 × 392,962.70 - Step 4: Simplify right side
542,407.70x = 319,403,874,650.06 - Step 5: Solve for x
x = 319,403,874,650.06/542,407.70 - Step 6: Final answer
x = 588,863.09
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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.