Finding the Fourth Proportional to 947,331.87, 1,307,315.97 and 517,615.08
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Solution
The fourth proportional to 947,331.87, 1,307,315.97 and 517,615.08 is: 714,307.71
Step by Step Solution
- Step 1: Write the proportion equation
947,331.87 : 1,307,315.97 = 517,615.08 : x - Step 2: Convert to fraction form
947,331.87/1,307,315.97 = 517,615.08/x - Step 3: Cross multiply
947,331.87x = 1,307,315.97 × 517,615.08 - Step 4: Simplify right side
947,331.87x = 676,686,460,396.83 - Step 5: Solve for x
x = 676,686,460,396.83/947,331.87 - Step 6: Final answer
x = 714,307.71
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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.