Finding the Fourth Proportional to 570,609.36, 787,431.30 and 315,955.08
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Solution
The fourth proportional to 570,609.36, 787,431.30 and 315,955.08 is: 436,012.69
Step by Step Solution
- Step 1: Write the proportion equation
570,609.36 : 787,431.30 = 315,955.08 : x - Step 2: Convert to fraction form
570,609.36/787,431.30 = 315,955.08/x - Step 3: Cross multiply
570,609.36x = 787,431.30 × 315,955.08 - Step 4: Simplify right side
570,609.36x = 248,792,919,386.00 - Step 5: Solve for x
x = 248,792,919,386.00/570,609.36 - Step 6: Final answer
x = 436,012.69
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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.