Finding the Fourth Proportional to 877,405.42, 1,316,154.87 and 278,413.46
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Solution
The fourth proportional to 877,405.42, 1,316,154.87 and 278,413.46 is: 417,635.01
Step by Step Solution
- Step 1: Write the proportion equation
877,405.42 : 1,316,154.87 = 278,413.46 : x - Step 2: Convert to fraction form
877,405.42/1,316,154.87 = 278,413.46/x - Step 3: Cross multiply
877,405.42x = 1,316,154.87 × 278,413.46 - Step 4: Simplify right side
877,405.42x = 366,435,224,671.78 - Step 5: Solve for x
x = 366,435,224,671.78/877,405.42 - Step 6: Final answer
x = 417,635.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.