Finding the Fourth Proportional to 839,386.95, 1,158,355.26 and 457,413.63
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Solution
The fourth proportional to 839,386.95, 1,158,355.26 and 457,413.63 is: 631,231.50
Step by Step Solution
- Step 1: Write the proportion equation
839,386.95 : 1,158,355.26 = 457,413.63 : x - Step 2: Convert to fraction form
839,386.95/1,158,355.26 = 457,413.63/x - Step 3: Cross multiply
839,386.95x = 1,158,355.26 × 457,413.63 - Step 4: Simplify right side
839,386.95x = 529,847,484,306.19 - Step 5: Solve for x
x = 529,847,484,306.19/839,386.95 - Step 6: Final answer
x = 631,231.50
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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.