Finding the Fourth Proportional to 936,946.18, 1,292,988.65 and 507,225.30
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Solution
The fourth proportional to 936,946.18, 1,292,988.65 and 507,225.30 is: 699,972.50
Step by Step Solution
- Step 1: Write the proportion equation
936,946.18 : 1,292,988.65 = 507,225.30 : x - Step 2: Convert to fraction form
936,946.18/1,292,988.65 = 507,225.30/x - Step 3: Cross multiply
936,946.18x = 1,292,988.65 × 507,225.30 - Step 4: Simplify right side
936,946.18x = 655,836,555,892.85 - Step 5: Solve for x
x = 655,836,555,892.85/936,946.18 - Step 6: Final answer
x = 699,972.50
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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.