Finding the Fourth Proportional to 905,437.92, 1,249,429.54 and 497,518.68
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Solution
The fourth proportional to 905,437.92, 1,249,429.54 and 497,518.68 is: 686,534.68
Step by Step Solution
- Step 1: Write the proportion equation
905,437.92 : 1,249,429.54 = 497,518.68 : x - Step 2: Convert to fraction form
905,437.92/1,249,429.54 = 497,518.68/x - Step 3: Cross multiply
905,437.92x = 1,249,429.54 × 497,518.68 - Step 4: Simplify right side
905,437.92x = 621,614,535,493.81 - Step 5: Solve for x
x = 621,614,535,493.81/905,437.92 - Step 6: Final answer
x = 686,534.68
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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.