Finding the Fourth Proportional to 1,295,551.04, 1,787,862.80 and 722,628.12
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Solution
The fourth proportional to 1,295,551.04, 1,787,862.80 and 722,628.12 is: 997,228.12
Step by Step Solution
- Step 1: Write the proportion equation
1,295,551.04 : 1,787,862.80 = 722,628.12 : x - Step 2: Convert to fraction form
1,295,551.04/1,787,862.80 = 722,628.12/x - Step 3: Cross multiply
1,295,551.04x = 1,787,862.80 × 722,628.12 - Step 4: Simplify right side
1,295,551.04x = 1,291,959,933,981.94 - Step 5: Solve for x
x = 1,291,959,933,981.94/1,295,551.04 - Step 6: Final answer
x = 997,228.12
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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.