Finding the Fourth Proportional to 819,118.98, 1,130,343.66 and 456,572.70
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Solution
The fourth proportional to 819,118.98, 1,130,343.66 and 456,572.70 is: 630,047.73
Step by Step Solution
- Step 1: Write the proportion equation
819,118.98 : 1,130,343.66 = 456,572.70 : x - Step 2: Convert to fraction form
819,118.98/1,130,343.66 = 456,572.70/x - Step 3: Cross multiply
819,118.98x = 1,130,343.66 × 456,572.70 - Step 4: Simplify right side
819,118.98x = 516,084,056,774.08 - Step 5: Solve for x
x = 516,084,056,774.08/819,118.98 - Step 6: Final answer
x = 630,047.73
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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.