Finding the Fourth Proportional to 905,421.11, 1,249,408.00 and 523,472.49
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Solution
The fourth proportional to 905,421.11, 1,249,408.00 and 523,472.49 is: 722,349.76
Step by Step Solution
- Step 1: Write the proportion equation
905,421.11 : 1,249,408.00 = 523,472.49 : x - Step 2: Convert to fraction form
905,421.11/1,249,408.00 = 523,472.49/x - Step 3: Cross multiply
905,421.11x = 1,249,408.00 × 523,472.49 - Step 4: Simplify right side
905,421.11x = 654,030,718,600.76 - Step 5: Solve for x
x = 654,030,718,600.76/905,421.11 - Step 6: Final answer
x = 722,349.76
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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.