Finding the Fourth Proportional to 519,246.60, 778,869.90 and 487,753.80
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Solution
The fourth proportional to 519,246.60, 778,869.90 and 487,753.80 is: 731,630.70
Step by Step Solution
- Step 1: Write the proportion equation
519,246.60 : 778,869.90 = 487,753.80 : x - Step 2: Convert to fraction form
519,246.60/778,869.90 = 487,753.80/x - Step 3: Cross multiply
519,246.60x = 778,869.90 × 487,753.80 - Step 4: Simplify right side
519,246.60x = 379,896,753,430.62 - Step 5: Solve for x
x = 379,896,753,430.62/519,246.60 - Step 6: Final answer
x = 731,630.70
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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.