Finding the Fourth Proportional to 877,821.95, 1,211,916.35 and 555,808.07
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Solution
The fourth proportional to 877,821.95, 1,211,916.35 and 555,808.07 is: 767,345.69
Step by Step Solution
- Step 1: Write the proportion equation
877,821.95 : 1,211,916.35 = 555,808.07 : x - Step 2: Convert to fraction form
877,821.95/1,211,916.35 = 555,808.07/x - Step 3: Cross multiply
877,821.95x = 1,211,916.35 × 555,808.07 - Step 4: Simplify right side
877,821.95x = 673,592,887,494.95 - Step 5: Solve for x
x = 673,592,887,494.95/877,821.95 - Step 6: Final answer
x = 767,345.69
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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.