Finding the Fourth Proportional to 1,289,107.02, 1,779,014.14 and 745,413.42
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Solution
The fourth proportional to 1,289,107.02, 1,779,014.14 and 745,413.42 is: 1,028,697.38
Step by Step Solution
- Step 1: Write the proportion equation
1,289,107.02 : 1,779,014.14 = 745,413.42 : x - Step 2: Convert to fraction form
1,289,107.02/1,779,014.14 = 745,413.42/x - Step 3: Cross multiply
1,289,107.02x = 1,779,014.14 × 745,413.42 - Step 4: Simplify right side
1,289,107.02x = 1,326,101,014,325.76 - Step 5: Solve for x
x = 1,326,101,014,325.76/1,289,107.02 - Step 6: Final answer
x = 1,028,697.38
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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.