Finding the Fourth Proportional to 905,428.35, 1,249,417.99 and 523,479.75
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Solution
The fourth proportional to 905,428.35, 1,249,417.99 and 523,479.75 is: 722,359.77
Step by Step Solution
- Step 1: Write the proportion equation
905,428.35 : 1,249,417.99 = 523,479.75 : x - Step 2: Convert to fraction form
905,428.35/1,249,417.99 = 523,479.75/x - Step 3: Cross multiply
905,428.35x = 1,249,417.99 × 523,479.75 - Step 4: Simplify right side
905,428.35x = 654,045,014,433.30 - Step 5: Solve for x
x = 654,045,014,433.30/905,428.35 - Step 6: Final answer
x = 722,359.77
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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.