Finding the Fourth Proportional to 1,133,445.29, 1,564,035.58 and 643,258.70
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Solution
The fourth proportional to 1,133,445.29, 1,564,035.58 and 643,258.70 is: 887,629.52
Step by Step Solution
- Step 1: Write the proportion equation
1,133,445.29 : 1,564,035.58 = 643,258.70 : x - Step 2: Convert to fraction form
1,133,445.29/1,564,035.58 = 643,258.70/x - Step 3: Cross multiply
1,133,445.29x = 1,564,035.58 × 643,258.70 - Step 4: Simplify right side
1,133,445.29x = 1,006,079,496,246.49 - Step 5: Solve for x
x = 1,006,079,496,246.49/1,133,445.29 - Step 6: Final answer
x = 887,629.52
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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.