Finding the Fourth Proportional to 692,679.84, 1,038,915.84 and 219,303.84
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Solution
The fourth proportional to 692,679.84, 1,038,915.84 and 219,303.84 is: 328,922.86
Step by Step Solution
- Step 1: Write the proportion equation
692,679.84 : 1,038,915.84 = 219,303.84 : x - Step 2: Convert to fraction form
692,679.84/1,038,915.84 = 219,303.84/x - Step 3: Cross multiply
692,679.84x = 1,038,915.84 × 219,303.84 - Step 4: Simplify right side
692,679.84x = 227,838,233,148.83 - Step 5: Solve for x
x = 227,838,233,148.83/692,679.84 - Step 6: Final answer
x = 328,922.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.