Finding the Fourth Proportional to 905,390.24, 1,249,460.84 and 497,488.84
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Solution
The fourth proportional to 905,390.24, 1,249,460.84 and 497,488.84 is: 686,546.86
Step by Step Solution
- Step 1: Write the proportion equation
905,390.24 : 1,249,460.84 = 497,488.84 : x - Step 2: Convert to fraction form
905,390.24/1,249,460.84 = 497,488.84/x - Step 3: Cross multiply
905,390.24x = 1,249,460.84 × 497,488.84 - Step 4: Simplify right side
905,390.24x = 621,592,823,917.03 - Step 5: Solve for x
x = 621,592,823,917.03/905,390.24 - Step 6: Final answer
x = 686,546.86
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1.5x scale
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.