Finding the Fourth Proportional to 3,020,320.96, 4,168,861.76 and 1,781,013.68
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Solution
The fourth proportional to 3,020,320.96, 4,168,861.76 and 1,781,013.68 is: 2,458,281.73
Step by Step Solution
- Step 1: Write the proportion equation
3,020,320.96 : 4,168,861.76 = 1,781,013.68 : x - Step 2: Convert to fraction form
3,020,320.96/4,168,861.76 = 1,781,013.68/x - Step 3: Cross multiply
3,020,320.96x = 4,168,861.76 × 1,781,013.68 - Step 4: Simplify right side
3,020,320.96x = 7,424,799,824,588.88 - Step 5: Solve for x
x = 7,424,799,824,588.88/3,020,320.96 - Step 6: Final answer
x = 2,458,281.73
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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.