Finding the Fourth Proportional to 576,021.18, 864,221.28 and 272,545.74
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Solution
The fourth proportional to 576,021.18, 864,221.28 and 272,545.74 is: 408,908.28
Step by Step Solution
- Step 1: Write the proportion equation
576,021.18 : 864,221.28 = 272,545.74 : x - Step 2: Convert to fraction form
576,021.18/864,221.28 = 272,545.74/x - Step 3: Cross multiply
576,021.18x = 864,221.28 × 272,545.74 - Step 4: Simplify right side
576,021.18x = 235,539,828,281.35 - Step 5: Solve for x
x = 235,539,828,281.35/576,021.18 - Step 6: Final answer
x = 408,908.28
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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.