Finding the Fourth Proportional to 3,461,623.95, 4,777,328.70 and 1,913,187.98
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Solution
The fourth proportional to 3,461,623.95, 4,777,328.70 and 1,913,187.98 is: 2,640,358.38
Step by Step Solution
- Step 1: Write the proportion equation
3,461,623.95 : 4,777,328.70 = 1,913,187.98 : x - Step 2: Convert to fraction form
3,461,623.95/4,777,328.70 = 1,913,187.98/x - Step 3: Cross multiply
3,461,623.95x = 4,777,328.70 × 1,913,187.98 - Step 4: Simplify right side
3,461,623.95x = 9,139,927,821,462.38 - Step 5: Solve for x
x = 9,139,927,821,462.38/3,461,623.95 - Step 6: Final answer
x = 2,640,358.38
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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.