Finding the Fourth Proportional to 1,121,600.61, 1,547,800.97 and 612,302.98
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Solution
The fourth proportional to 1,121,600.61, 1,547,800.97 and 612,302.98 is: 844,973.82
Step by Step Solution
- Step 1: Write the proportion equation
1,121,600.61 : 1,547,800.97 = 612,302.98 : x - Step 2: Convert to fraction form
1,121,600.61/1,547,800.97 = 612,302.98/x - Step 3: Cross multiply
1,121,600.61x = 1,547,800.97 × 612,302.98 - Step 4: Simplify right side
1,121,600.61x = 947,723,146,377.89 - Step 5: Solve for x
x = 947,723,146,377.89/1,121,600.61 - Step 6: Final answer
x = 844,973.82
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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.