Finding the Fourth Proportional to 905,276.62, 1,249,282.02 and 497,404.54
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Solution
The fourth proportional to 905,276.62, 1,249,282.02 and 497,404.54 is: 686,418.42
Step by Step Solution
- Step 1: Write the proportion equation
905,276.62 : 1,249,282.02 = 497,404.54 : x - Step 2: Convert to fraction form
905,276.62/1,249,282.02 = 497,404.54/x - Step 3: Cross multiply
905,276.62x = 1,249,282.02 × 497,404.54 - Step 4: Simplify right side
905,276.62x = 621,398,548,488.37 - Step 5: Solve for x
x = 621,398,548,488.37/905,276.62 - Step 6: Final answer
x = 686,418.42
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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.