Finding the Fourth Proportional to 2,113,330.12, 2,916,395.58 and 1,207,931.56
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Solution
The fourth proportional to 2,113,330.12, 2,916,395.58 and 1,207,931.56 is: 1,666,945.56
Step by Step Solution
- Step 1: Write the proportion equation
2,113,330.12 : 2,916,395.58 = 1,207,931.56 : x - Step 2: Convert to fraction form
2,113,330.12/2,916,395.58 = 1,207,931.56/x - Step 3: Cross multiply
2,113,330.12x = 2,916,395.58 × 1,207,931.56 - Step 4: Simplify right side
2,113,330.12x = 3,522,806,262,526.51 - Step 5: Solve for x
x = 3,522,806,262,526.51/2,113,330.12 - Step 6: Final answer
x = 1,666,945.56
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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.