Finding the Fourth Proportional to 2,038,927.56, 2,813,660.53 and 1,121,155.74
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Solution
The fourth proportional to 2,038,927.56, 2,813,660.53 and 1,121,155.74 is: 1,547,162.20
Step by Step Solution
- Step 1: Write the proportion equation
2,038,927.56 : 2,813,660.53 = 1,121,155.74 : x - Step 2: Convert to fraction form
2,038,927.56/2,813,660.53 = 1,121,155.74/x - Step 3: Cross multiply
2,038,927.56x = 2,813,660.53 × 1,121,155.74 - Step 4: Simplify right side
2,038,927.56x = 3,154,551,650,818.05 - Step 5: Solve for x
x = 3,154,551,650,818.05/2,038,927.56 - Step 6: Final answer
x = 1,547,162.20
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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.