Finding the Fourth Proportional to 947,432.40, 1,307,440.86 and 517,702.62
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Solution
The fourth proportional to 947,432.40, 1,307,440.86 and 517,702.62 is: 714,420.95
Step by Step Solution
- Step 1: Write the proportion equation
947,432.40 : 1,307,440.86 = 517,702.62 : x - Step 2: Convert to fraction form
947,432.40/1,307,440.86 = 517,702.62/x - Step 3: Cross multiply
947,432.40x = 1,307,440.86 × 517,702.62 - Step 4: Simplify right side
947,432.40x = 676,865,558,717.05 - Step 5: Solve for x
x = 676,865,558,717.05/947,432.40 - Step 6: Final answer
x = 714,420.95
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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.