Finding the Fourth Proportional to 905,419.36, 1,249,405.58 and 523,470.74
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Solution
The fourth proportional to 905,419.36, 1,249,405.58 and 523,470.74 is: 722,347.34
Step by Step Solution
- Step 1: Write the proportion equation
905,419.36 : 1,249,405.58 = 523,470.74 : x - Step 2: Convert to fraction form
905,419.36/1,249,405.58 = 523,470.74/x - Step 3: Cross multiply
905,419.36x = 1,249,405.58 × 523,470.74 - Step 4: Simplify right side
905,419.36x = 654,027,267,954.92 - Step 5: Solve for x
x = 654,027,267,954.92/905,419.36 - Step 6: Final answer
x = 722,347.34
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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.