Finding the Fourth Proportional to 947,459.16, 1,307,438.55 and 517,742.82
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Solution
The fourth proportional to 947,459.16, 1,307,438.55 and 517,742.82 is: 714,454.99
Step by Step Solution
- Step 1: Write the proportion equation
947,459.16 : 1,307,438.55 = 517,742.82 : x - Step 2: Convert to fraction form
947,459.16/1,307,438.55 = 517,742.82/x - Step 3: Cross multiply
947,459.16x = 1,307,438.55 × 517,742.82 - Step 4: Simplify right side
947,459.16x = 676,916,921,853.71 - Step 5: Solve for x
x = 676,916,921,853.71/947,459.16 - Step 6: Final answer
x = 714,454.99
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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.