Finding the Fourth Proportional to 905,660.91, 1,249,824.99 and 497,800.46
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Solution
The fourth proportional to 905,660.91, 1,249,824.99 and 497,800.46 is: 686,971.74
Step by Step Solution
- Step 1: Write the proportion equation
905,660.91 : 1,249,824.99 = 497,800.46 : x - Step 2: Convert to fraction form
905,660.91/1,249,824.99 = 497,800.46/x - Step 3: Cross multiply
905,660.91x = 1,249,824.99 × 497,800.46 - Step 4: Simplify right side
905,660.91x = 622,163,448,692.37 - Step 5: Solve for x
x = 622,163,448,692.37/905,660.91 - Step 6: Final answer
x = 686,971.74
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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.