Finding the Fourth Proportional to 942,122.48, 1,406,802.21 and 747,816.95
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Solution
The fourth proportional to 942,122.48, 1,406,802.21 and 747,816.95 is: 1,116,660.05
Step by Step Solution
- Step 1: Write the proportion equation
942,122.48 : 1,406,802.21 = 747,816.95 : x - Step 2: Convert to fraction form
942,122.48/1,406,802.21 = 747,816.95/x - Step 3: Cross multiply
942,122.48x = 1,406,802.21 × 747,816.95 - Step 4: Simplify right side
942,122.48x = 1,052,030,537,935.46 - Step 5: Solve for x
x = 1,052,030,537,935.46/942,122.48 - Step 6: Final answer
x = 1,116,660.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.