Finding the Fourth Proportional to 742,419.41, 1,024,539.44 and 402,887.66
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Solution
The fourth proportional to 742,419.41, 1,024,539.44 and 402,887.66 is: 555,985.32
Step by Step Solution
- Step 1: Write the proportion equation
742,419.41 : 1,024,539.44 = 402,887.66 : x - Step 2: Convert to fraction form
742,419.41/1,024,539.44 = 402,887.66/x - Step 3: Cross multiply
742,419.41x = 1,024,539.44 × 402,887.66 - Step 4: Simplify right side
742,419.41x = 412,774,290,422.18 - Step 5: Solve for x
x = 412,774,290,422.18/742,419.41 - Step 6: Final answer
x = 555,985.32
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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.