Finding the Fourth Proportional to 747,712.70, 1,121,569.05 and 249,076.70
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Solution
The fourth proportional to 747,712.70, 1,121,569.05 and 249,076.70 is: 373,615.05
Step by Step Solution
- Step 1: Write the proportion equation
747,712.70 : 1,121,569.05 = 249,076.70 : x - Step 2: Convert to fraction form
747,712.70/1,121,569.05 = 249,076.70/x - Step 3: Cross multiply
747,712.70x = 1,121,569.05 × 249,076.70 - Step 4: Simplify right side
747,712.70x = 279,356,717,796.14 - Step 5: Solve for x
x = 279,356,717,796.14/747,712.70 - Step 6: Final answer
x = 373,615.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.