Finding the Fourth Proportional to 1,133,447.54, 1,564,038.68 and 643,260.96
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Solution
The fourth proportional to 1,133,447.54, 1,564,038.68 and 643,260.96 is: 887,632.63
Step by Step Solution
- Step 1: Write the proportion equation
1,133,447.54 : 1,564,038.68 = 643,260.96 : x - Step 2: Convert to fraction form
1,133,447.54/1,564,038.68 = 643,260.96/x - Step 3: Cross multiply
1,133,447.54x = 1,564,038.68 × 643,260.96 - Step 4: Simplify right side
1,133,447.54x = 1,006,085,022,773.93 - Step 5: Solve for x
x = 1,006,085,022,773.93/1,133,447.54 - Step 6: Final answer
x = 887,632.63
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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.