Finding the Fourth Proportional to 1,281,941.64, 1,769,069.16 and 708,967.08
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Solution
The fourth proportional to 1,281,941.64, 1,769,069.16 and 708,967.08 is: 978,368.87
Step by Step Solution
- Step 1: Write the proportion equation
1,281,941.64 : 1,769,069.16 = 708,967.08 : x - Step 2: Convert to fraction form
1,281,941.64/1,769,069.16 = 708,967.08/x - Step 3: Cross multiply
1,281,941.64x = 1,769,069.16 × 708,967.08 - Step 4: Simplify right side
1,281,941.64x = 1,254,211,796,683.25 - Step 5: Solve for x
x = 1,254,211,796,683.25/1,281,941.64 - Step 6: Final answer
x = 978,368.87
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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.