Finding the Fourth Proportional to 905,488.62, 1,249,301.80 and 542,780.14
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Solution
The fourth proportional to 905,488.62, 1,249,301.80 and 542,780.14 is: 748,873.25
Step by Step Solution
- Step 1: Write the proportion equation
905,488.62 : 1,249,301.80 = 542,780.14 : x - Step 2: Convert to fraction form
905,488.62/1,249,301.80 = 542,780.14/x - Step 3: Cross multiply
905,488.62x = 1,249,301.80 × 542,780.14 - Step 4: Simplify right side
905,488.62x = 678,096,204,123.84 - Step 5: Solve for x
x = 678,096,204,123.84/905,488.62 - Step 6: Final answer
x = 748,873.25
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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.