Finding the Fourth Proportional to 935,345.08, 1,289,915.40 and 612,938.08
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Solution
The fourth proportional to 935,345.08, 1,289,915.40 and 612,938.08 is: 845,290.46
Step by Step Solution
- Step 1: Write the proportion equation
935,345.08 : 1,289,915.40 = 612,938.08 : x - Step 2: Convert to fraction form
935,345.08/1,289,915.40 = 612,938.08/x - Step 3: Cross multiply
935,345.08x = 1,289,915.40 × 612,938.08 - Step 4: Simplify right side
935,345.08x = 790,638,268,638.43 - Step 5: Solve for x
x = 790,638,268,638.43/935,345.08 - Step 6: Final answer
x = 845,290.46
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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.