Finding the Fourth Proportional to 936,535.05, 1,292,421.68 and 506,815.07
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Solution
The fourth proportional to 936,535.05, 1,292,421.68 and 506,815.07 is: 699,406.58
Step by Step Solution
- Step 1: Write the proportion equation
936,535.05 : 1,292,421.68 = 506,815.07 : x - Step 2: Convert to fraction form
936,535.05/1,292,421.68 = 506,815.07/x - Step 3: Cross multiply
936,535.05x = 1,292,421.68 × 506,815.07 - Step 4: Simplify right side
936,535.05x = 655,018,775,222.53 - Step 5: Solve for x
x = 655,018,775,222.53/936,535.05 - Step 6: Final answer
x = 699,406.58
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1.5x scale
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.