Finding the Fourth Proportional to 719,442.48, 992,950.68 and 687,555.12
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Solution
The fourth proportional to 719,442.48, 992,950.68 and 687,555.12 is: 948,940.80
Step by Step Solution
- Step 1: Write the proportion equation
719,442.48 : 992,950.68 = 687,555.12 : x - Step 2: Convert to fraction form
719,442.48/992,950.68 = 687,555.12/x - Step 3: Cross multiply
719,442.48x = 992,950.68 × 687,555.12 - Step 4: Simplify right side
719,442.48x = 682,708,323,941.48 - Step 5: Solve for x
x = 682,708,323,941.48/719,442.48 - Step 6: Final answer
x = 948,940.80
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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.