Finding the Fourth Proportional to 905,202.98, 1,249,202.12 and 497,331.24
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Solution
The fourth proportional to 905,202.98, 1,249,202.12 and 497,331.24 is: 686,329.20
Step by Step Solution
- Step 1: Write the proportion equation
905,202.98 : 1,249,202.12 = 497,331.24 : x - Step 2: Convert to fraction form
905,202.98/1,249,202.12 = 497,331.24/x - Step 3: Cross multiply
905,202.98x = 1,249,202.12 × 497,331.24 - Step 4: Simplify right side
905,202.98x = 621,267,239,350.23 - Step 5: Solve for x
x = 621,267,239,350.23/905,202.98 - Step 6: Final answer
x = 686,329.20
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1.5x scale
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.