Finding the Fourth Proportional to 1,281,392.12, 1,768,358.04 and 708,469.28
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Solution
The fourth proportional to 1,281,392.12, 1,768,358.04 and 708,469.28 is: 977,708.02
Step by Step Solution
- Step 1: Write the proportion equation
1,281,392.12 : 1,768,358.04 = 708,469.28 : x - Step 2: Convert to fraction form
1,281,392.12/1,768,358.04 = 708,469.28/x - Step 3: Cross multiply
1,281,392.12x = 1,768,358.04 × 708,469.28 - Step 4: Simplify right side
1,281,392.12x = 1,252,827,347,381.01 - Step 5: Solve for x
x = 1,252,827,347,381.01/1,281,392.12 - Step 6: Final answer
x = 977,708.02
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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.