Finding the Fourth Proportional to 1,133,604.60, 1,564,105.71 and 643,465.09
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Solution
The fourth proportional to 1,133,604.60, 1,564,105.71 and 643,465.09 is: 887,829.34
Step by Step Solution
- Step 1: Write the proportion equation
1,133,604.60 : 1,564,105.71 = 643,465.09 : x - Step 2: Convert to fraction form
1,133,604.60/1,564,105.71 = 643,465.09/x - Step 3: Cross multiply
1,133,604.60x = 1,564,105.71 × 643,465.09 - Step 4: Simplify right side
1,133,604.60x = 1,006,447,421,454.66 - Step 5: Solve for x
x = 1,006,447,421,454.66/1,133,604.60 - Step 6: Final answer
x = 887,829.34
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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.