Finding the Fourth Proportional to 561,545.76, 774,931.26 and 306,896.88
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Solution
The fourth proportional to 561,545.76, 774,931.26 and 306,896.88 is: 423,516.66
Step by Step Solution
- Step 1: Write the proportion equation
561,545.76 : 774,931.26 = 306,896.88 : x - Step 2: Convert to fraction form
561,545.76/774,931.26 = 306,896.88/x - Step 3: Cross multiply
561,545.76x = 774,931.26 × 306,896.88 - Step 4: Simplify right side
561,545.76x = 237,823,985,908.47 - Step 5: Solve for x
x = 237,823,985,908.47/561,545.76 - Step 6: Final answer
x = 423,516.66
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1.5x scale
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.