Finding the Fourth Proportional to 719,442.98, 992,951.37 and 687,555.62
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Solution
The fourth proportional to 719,442.98, 992,951.37 and 687,555.62 is: 948,941.49
Step by Step Solution
- Step 1: Write the proportion equation
719,442.98 : 992,951.37 = 687,555.62 : x - Step 2: Convert to fraction form
719,442.98/992,951.37 = 687,555.62/x - Step 3: Cross multiply
719,442.98x = 992,951.37 × 687,555.62 - Step 4: Simplify right side
719,442.98x = 682,709,294,830.20 - Step 5: Solve for x
x = 682,709,294,830.20/719,442.98 - Step 6: Final answer
x = 948,941.49
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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.