Finding the Fourth Proportional to 570,752.10, 787,631.58 and 316,102.68
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Solution
The fourth proportional to 570,752.10, 787,631.58 and 316,102.68 is: 436,218.20
Step by Step Solution
- Step 1: Write the proportion equation
570,752.10 : 787,631.58 = 316,102.68 : x - Step 2: Convert to fraction form
570,752.10/787,631.58 = 316,102.68/x - Step 3: Cross multiply
570,752.10x = 787,631.58 × 316,102.68 - Step 4: Simplify right side
570,752.10x = 248,972,453,290.63 - Step 5: Solve for x
x = 248,972,453,290.63/570,752.10 - Step 6: Final answer
x = 436,218.20
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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.