Finding the Fourth Proportional to 2,187,648.59, 3,018,955.64 and 1,207,588.19
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Solution
The fourth proportional to 2,187,648.59, 3,018,955.64 and 1,207,588.19 is: 1,666,472.02
Step by Step Solution
- Step 1: Write the proportion equation
2,187,648.59 : 3,018,955.64 = 1,207,588.19 : x - Step 2: Convert to fraction form
2,187,648.59/3,018,955.64 = 1,207,588.19/x - Step 3: Cross multiply
2,187,648.59x = 3,018,955.64 × 1,207,588.19 - Step 4: Simplify right side
2,187,648.59x = 3,645,655,155,865.17 - Step 5: Solve for x
x = 3,645,655,155,865.17/2,187,648.59 - Step 6: Final answer
x = 1,666,472.02
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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.