Finding the Fourth Proportional to 832,353.28, 1,148,643.84 and 450,386.80
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Solution
The fourth proportional to 832,353.28, 1,148,643.84 and 450,386.80 is: 621,531.79
Step by Step Solution
- Step 1: Write the proportion equation
832,353.28 : 1,148,643.84 = 450,386.80 : x - Step 2: Convert to fraction form
832,353.28/1,148,643.84 = 450,386.80/x - Step 3: Cross multiply
832,353.28x = 1,148,643.84 × 450,386.80 - Step 4: Simplify right side
832,353.28x = 517,334,023,437.31 - Step 5: Solve for x
x = 517,334,023,437.31/832,353.28 - Step 6: Final answer
x = 621,531.79
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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.