Finding the Fourth Proportional to 905,201.16, 1,249,172.37 and 497,294.16
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Solution
The fourth proportional to 905,201.16, 1,249,172.37 and 497,294.16 is: 686,263.07
Step by Step Solution
- Step 1: Write the proportion equation
905,201.16 : 1,249,172.37 = 497,294.16 : x - Step 2: Convert to fraction form
905,201.16/1,249,172.37 = 497,294.16/x - Step 3: Cross multiply
905,201.16x = 1,249,172.37 × 497,294.16 - Step 4: Simplify right side
905,201.16x = 621,206,124,434.36 - Step 5: Solve for x
x = 621,206,124,434.36/905,201.16 - Step 6: Final answer
x = 686,263.07
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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.