Finding the Fourth Proportional to 936,913.12, 1,292,938.62 and 507,193.12
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Solution
The fourth proportional to 936,913.12, 1,292,938.62 and 507,193.12 is: 699,925.70
Step by Step Solution
- Step 1: Write the proportion equation
936,913.12 : 1,292,938.62 = 507,193.12 : x - Step 2: Convert to fraction form
936,913.12/1,292,938.62 = 507,193.12/x - Step 3: Cross multiply
936,913.12x = 1,292,938.62 × 507,193.12 - Step 4: Simplify right side
936,913.12x = 655,769,572,646.29 - Step 5: Solve for x
x = 655,769,572,646.29/936,913.12 - Step 6: Final answer
x = 699,925.70
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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.